Birds 2024

January 04, 2025

I am a little later than usual, but it is again time to recap my annual birder list. Once more I saw a number of red-tailed hawks (Buteo jamaicensis) on the power lines going to and from town but this year I was unable to actually get a picture, so they were not added to my count. I was unable to take my usual trip to the wildlife area this year and so missed out on any of the birds I might have seen there. The end of year presence on my feeders was good as the cold weather brought the small Passerines (sparrows and finches), although the larger birds (cardinals and jays) were mostly absent. I cleaned out the bluebird (Sialia sialis) house last week. One of the squirrels who frequent the feeders has taken to gnawing on the entrance, so I opened it to check if everything was ok. It was fine but I cleaned the nest and debris in preparation for the next nesting season. BTW: for those who read last week’s blog (Gaggle) a group of squirrels is called a “dray” or a “scurry”.

All that said leads up to the “great reveal” concerning my birder totals for 2024. You may recall I recorded 26 species in my first year (2020). I got off to a great start in 2021 with 29 species by the end of January and a total of 52 species for the year. During 2022 the sightings were slower, with 44 different species, not counting the six European sightings (50 total?). During 2023 I recorded my lowest number of sightings since my first year, with only 30 species. During 2024 the numbers rose slightly to 39 documented species. Building a fence in the side yard helped as the kids no longer play near the feeders and the birds feel free to come and go more frequently. Still, early morning and early evening are the best times to watch. We also added three new feeders that attach to the glass on the bay window next to where Melissa works. This allows her to watch as the American gold finch (Spinus tristis) and Dark-eyed junco (Junco hyemalis) as they battle for feeding rights.

As I pulled onto the entrance road to the lake to take the kids for a walk yesterday, I caught sight of a large bird perched in the trees. I drove by as the bird turned and flashed the unmistakable white head of a bald eagle (Haliaeetus leucocephalus). I slowed and then pulled over as soon as I (no shoulders). I walked back the 1/4 mile (400m) scanning the trees and hoping to be able to get a photo for my birding list. Unfortunately, the eagle had moved on and was now out of sight. When we began our walk out onto the first spit of land, I heard the call of a red-bellied woodpecker (Melanerpes carolinus). I scanned the trees along the road and caught sight of the bird high among the branches. I pulled out my phone to take a photo but again, by that time the bird was gone. That made two birds I usually only see a couple of times a year and I had missed documenting them both. These were part of the many birds I have seen but not photographed over my last five years of birding. The official Cornell Lab of Ornithology bird list guide does not require documentation with a photo to count as a sighting, although that has been my criteria. Perhaps I should rethink.

THOUGHTS: I acquired several new feeders (now 13, plus 9 hummingbird feeders) during 2024. Melissa asked about the cost as she watched me buying seeds and filling the feeders on a daily basis. I tend to buy seeds in bulk, and I only have to restock two or three times a year. Watching the birds (and squirrels) gives us both pleasure. Like my garden and Melissa’s succulents, the expense to feed the birds is well spent. Be sure to mark your calendars for the Great Backyard Bird Count 2025 (February 14 to February 17, 2025). As I mentioned last year, birds are the (literal) canary in the mine shaft (earth) when it comes to gauging the health of our ecosystems. Act for all. Change is coming and it starts with you.

Gaggle

December 30, 2024

The kids were overwhelmed as we took our walk at the lake last week. They had been intrigued in the past by the occasional greater egret (Ardea alba) or great blue heron (Ardea herodias) that spend time in the shallows at the end of the two spits we walk. The kids will stop and even strain on their leash trying to get a better look at these large solitary birds. They were not prepared for the mass of birds we encountered on this occasion. The herons had flown away as the kids approached, but the Canada geese (Branta canadensis) stood their ground. Both Zena and Loki hesitated in the face of this loud and raucous group of birds. It was not until the kids composed themselves and began to move forward that the group decided they wanted no part of these two large dogs (Canis familiaris). This gaggle of geese took flight and moved to the safety of the water.

When I looked online, I found a gaggle of geese occurred in English print in Julia Berners book, “The Book of Hawking, Hunting and Blasing of Arms” in 1486. Geese are called a “gaggle” because together they are noisy and rowdy. Little is known of Berners, and much of what is known cannot be verified with certainty, but she is thought to be the earliest female author writing in the English language. Based on her last name, scholars suggest that she was either the daughter of the courtier Sir James Berners or wife to the lord of the manor of Julians Barnes, and she was high-born and well-educated. Since she was most likely brought up at court, she would have hunted and fished with the other fashionable court ladies. It is generally believed that she entered the monastic life and became the prioress of Sopwell Nunnery near St Albans. Berners seemed to retain her love of hawking, hunting and fishing, and her passion for field sports, leading her to write her treatise on hunting and others. These treatises are some of the earliest extant writings of their kind and include remarks on the virtues of environmental conservation and on etiquette for field sports. These concepts would not become commonly accepted for hundreds of years after the publication of these treatises. She is also remembered as one of the first authors (of either sex) to write on angling.

A gaggle is just one of the 165 collective nouns (a “naming word for groups of things) for groups Berners defines in her publication. A group of owls (Order: Strigiformes) is called a parliament, possibly attributed to the idea that owls are considered intelligent and wise. A group of wildebeests (Genus: Connochaetes) is called a confusion. This could be due to the huge numbers of animals that in the annual Great Migration and the resulting confusion and noise that happens when the animals migrate. A group of lemurs (Superfamily: Lemuroidea) is called a conspiracy. Lemurs are social animals and live in communities of around 10 to 25 members who often work together (conspire) to outwit predators using a technique called “mobbing”. A group of hippopotamuses is called a bloat. Hippos live in groups of 10 to 20 females and one male, and bloat may refer to their large, bloated bellies. Finally, a group of wild cats is called a destruction. Feral cats can be territorial and fight to protect their territory, and when a group of feral cats get together, they can become destructive.

THOUGHTS: Canada geese thrived around the golf courses I played in Salt Lake City and would form into a large gaggle around the water hazards. The geese were generally docile as they sat on the lawn or swam in the ponds. The problem came when you hit your ball in their midst, when they cackled and blustered a warning. One even decided my ball was her egg and made an aggressive defense. Animals form groups for protection and defend their territory against predators. Humans use the same tactic and form resistance movements against tyrants or marauders. Like a gaggle of geese, we are stronger together. Act for all. Change is coming and it starts with you.

Cute

December 26, 2024

It is the end of the year and that means the internet is barraging us with stories of “The Best” and “The Worst” of everything from sports (Pommel Horse Guy) to music (Gabriela Ortiz, “Kauyumari”) to food (Sour Patch Oreos) . . . (ad nauseum). One story that caught my attention was about the animals that filled 2024 with sadness, intrigue, and delight. Sadness came with the tragic end of Flaco, the escaped Eurasian eagle owl who appeared to die in a building collision in February. Our intriguing was piqued by the Governor boasting of killing her misbehaving dog and a presidential nominee who deposited a dead bear cub in Central Park and cut the head off a dead whale found of the beach. The delight was the previously mentioned slippery potato named after a pork meatball (Moo Deng) who rocked the internet and drove cosmetic influencers for several months. Then there was Terrance the octopus who had been identified as male until “he” laid 50 fertilized eggs. The online audience watched the heroic efforts to keep the fragile hatchlings alive, even as there is only about 1% chance of survival for the hatchling to grow to .4 inches (10 mm) in the wild. It seemed what held media interest best was stories of cute baby animals learning to survive in the world.

When I looked online, I found there are two ways (of course) to answer why we find baby animals so cute. The proximate answer requires you to single out the features of animals that make them cute versus ugly, and often merge them into a general explanation. Why are baby ducks cute and baby parrots ugly? A proximate answer might involve fur, size of the head or the eyes, length of the limbs, all of which help us define cute. The ultimate answer is perhaps an evolutionary one. Is there an evolutionary reason why we find some features attractive and others repugnant? Answering these sorts of questions is the foundation of evolutionary psychology, and while the answers may be elusive (or even beyond our grasp), we still like to think about them. The reasons we find animals cute or ugly come from criteria that have evolved to help us evaluate members of our own species. Baby animals are cute because natural selection has given babies of some species traits that remind us of a human infant.

Some of these ideas could be tested to determine whether there is a commonality between features we see as ugly or cute in animals and compare them with similar features in humans. Regardless, it is important to remember things are not innately ugly or cute. Features humans find ugly may be exactly what attracts the female to the male of another species. As Darwin recognized, our tastes may be no less evolved than our brains or our bodies. For humans, there is no reason for why the signs of age make someone innately less attractive than the freshness of youth. It may be that our standards of beauty have evolved to reflect candidates for mates and older people are seen as less attractive because they are near or past the age of reproduction. This is a preference that could have been instilled in our ancestors by natural selection. Still, beauty in nature is not innate but evolved and our biology co-evolves with our tastes. Only in animal breeding is this reversed, where human desires allow us to sculpt the features and appearance regardless of the environment.

THOUGHTS: There are some babies (animals and humans) that are so ugly that they are cute. In Planet of the Apes, astronaut George Taylor is preparing to leave and thanks the chimpanzees who help him escape. He overcomes his repulsion and turns to Doctor Zira (female) saying, “Doctor, I’d like to kiss you goodbye.” Zira responds, “All right, but you’re so damned ugly.” Humans need to look beyond the traits that make one superficially cute and find the inner beauty that is only revealed when we get to know each other. Act for all. Change is coming and it starts with you.

Chipmunk

December 20, 2024

One of the casualties of building my raised beds was the wood pile located along the back fence. This wood had been stacked when Melissa and her parents used the raised fire pit that sits adjacent. We have not used the fire pit (or wood) in the six years we have been back, and it was beginning to deteriorate. This was the perfect wood for the bottom layer of the raised beds. As I transferred the wood to the beds I encountered a variety of critters. There was a small Texas Brown Snake (Storeria dekayi texana) hiding in the pile and toward the bottom I encountered several of the invasive earth worms (Lumbricus terrestris) that repopulated North America along with the European colonists. As I continued to work a small furry critter darted out of the wood pile and into the refuge in the next yard. had noticed the chipmunk on several previous occasions as it foraged beneath the bird feeders.

When I looked online, I found the eastern chipmunk (Tamias striatus) is a species endemic to eastern North America and the only living member of the genus Tamias. The name probably comes from the Ojibwe word “ajidamoo”, translating as “one who descends trees headlong.” The species was first described by Mark Catesby in 1743 and was eventually classified as Sciurus striatus by Linnaeus (Latin, “striped squirrel”). The scientific name was changed to Tamias striatus (“striped steward”) by Johann Illiger in 1811. The chipmunk reaches about 12 inches (30 cm) long including its tail and weighs 2.3 to 5.3 ounces (66 to 150g). It has reddish-brown fur on its upper body and five dark brown stripes contrasting with light brown stripes along its back. The fur of its lower body is lighter with a tawny stripe running from its whiskers to below its ears and light stripes over its eyes. The eastern chipmunk has two fewer teeth than other chipmunks, four toes on each front leg, and five toes on the hind legs. There is no external difference in appearance between the sexes except for genitalia. The eastern chipmunk lives in deciduous wooded areas and urban parks throughout the eastern US and southern Canada, preferring rocky areas, brush, log piles, and shrubs for cover.

I had not seen the chipmunk since removing the wood pile and forgot about it. Over the last month Loki has been going crazy every time we have let him out back. From the frantic way he was acting I figured there was some critter living under the ramp off our back door. When I mentioned this to Melissa, she said she thought she had seen a rat (Rattus norvegicus) scurry under the porch when she let the kids out in the morning. I poked around with a stick to see if I could scare the rat out, but it never budged. Last week the mystery was solved. I was up early and let the kids out and saw a flash as something tried to speed from beneath the feeder back under the ramp. I recognized the animal as a chipmunk and tried to keep Loke from grabbing it. It finally reached safety as Loki scratched, sniffed, and whined around the ramp. Melissa now makes a point of making noise before she lets the kids into the yard, giving the chipmunk time to scurry back to safety.

THOUGHTS: I was relieved when I found out we had a chipmunk rather than a rat. I have liked chipmunks since I encountered them as a boy around the picnic sites in the Rocky Mountains. Even though rats and chipmunks are both rodents, these smaller cousins seem cute and innocuous while rats seem menacing. Perhaps it is a throwback to the Black Plague that ravaged Europe and was blamed on the fleas carried by rats. I read an article last week suggesting it was more likely it was the human fleas that spread the disease rather than the rats (Europe was not very sanitary). Humans tend to have similar reactions when encountering other cultures. If they are welcoming or meek they are deemed ok, even if often taken advantage of. If they stand up or hold their ground, they are deemed a threat and often eliminated. Whether it is rats, chipmunks, or other humans, perspective changes how we treat them. Act for all. Change is coming and it starts with you.

Capybara

December 19, 2024

As the year ends, yet another baby animal is going viral on social media. Tupi was born at the San Antonio Zoo on December 3rd and the zoo has been sharing pictures and videos of him, his mother, (Luna), and other animals in his enclosure. As the largest rodent in the world, most capybaras spend their days munching on grass and water plants in dense vegetation around bodies of water. Tupi is the first of his species to be born at the facility in 25 years, according to a statement from the zoo.
Jacob Downing, a spokesman for the zoo, said, “Their births are not super rare. At the end of the day, they are still rodents.” There has not been any capybara at the zoo since 2018 and no babies since 2000. The zoo announced Tupi’s birth on its social media accounts late last week, getting an outpouring of internet love as Tupi was embraced on social media. An hour later the zoo distanced itself from a memecoin ($TUPI) named after the new capybara.

When I looked online, I found the capybara or greater capybara (Hydrochoerus hydrochaeris) is the largest living rodent and is native to South America. The genus Hydrochoerus has only two member species, the greater capybara and the lesser capybara (Hydrochoerus isthmius). Close relatives of the capybara are the domestic guinea pig (Cavia porcellus) and rock cavy (Kerodon rupestris) both endemic to the Andes. The capybara is distantly related to the agouti (genus Dasyprocta), the two species of chinchilla (Chinchilla chinchilla and Chinchilla lanigera), and the semiaquatic nutria (Myocastor coypus), all from South America. Adult capybaras grow to 3.5 to 4.5 feet (106 to 134 cm) in length, stand 20 to 24 inches tall (50 to 62 cm) at the withers, and typically weigh 77 to 146 pounds (35 to 66 kg). Females are slightly heavier than males. Capybaras have slightly webbed feet and vestigial tails. Their hind legs are slightly longer than their forelegs, with three toes on their rear feet and four toes on their front feet. Their muzzles are blunt, with nostrils, eyes, and ears near the top of their heads. The capybara inhabits savannas and dense forests near bodies of water. The species is highly social and can be found in groups (herds) as large as 100 individuals, but usually closer to 10 to 20. The capybara is hunted for its meat, hide, and the grease from its thick fatty skin.

The San Antonio Zoo quickly posted on X that the facility was not associated with or benefiting from the Cryptocurrency named after Tupi, the new baby capybara born at the zoo. Memecoins are a form of cryptocurrency which are named after memes, characters, animals and other things related to the internet in hopes of drawing interest. The pygmy hippopotamus (Choeropsis liberiensis) born in Thailand in July 2024 also has a memcoin named after it. As the crypto market experienced a revival this year, memecoins also surged, even as some, like the $HAWK coin created by Haliey Welch, appeared to exist solely to benefit the group of people behind the coin. The zoo is providing plenty of footage of the nearly 3-week-old capybara. Tupi is still nursing but has already begun eating solids. In one of the videos shared Tupi climbed entirely into a bowl of food in order to feast. 2024 has been a good year to be a cute baby animal at a zoo as social media users have personified them with popular internet lingo. The zoo gave Tupi a mantra for the new year:
“Unbothered. Moisturized. Happy. In My Lane. Focused. Flourishing.”

THOUGHTS: My first encounter with a capybara happened as a young boy at a small town fair in Kansas. The side show included a number of exotic animals. I paid my hard earned US50 cents to wonder at the bearded lady, sword swallower, and what had really caught my eye, a “Paris Sewer Rat”. The small town fairs have passed and have been replaced by the wonders of social media. The scam (and wonder) is still available to intrigue a young boy’s mind. “If its online, it must be true. Right?” Act for all. Change is coming and it starts with you.

Beards

November 27, 2024

As we approach Turkey Day, also known as Thanksgiving in the US, there have been a rash of stories on my browser about these interesting birds. These include the recent tradition of the Presidential Pardon. The first official presidential turkey pardon was given by George H.W. Bush in 1989, but reports credit many presidents with the tradition. Abraham Lincoln’s son took a liking to the turkey destined for Christmas dinner and the bird was spared. Harry Truman liked his bird so much he had the first presidential photo op, but that bird was not so lucky and was later served as a meal. Two days ago, President Biden pardoned Peach and Blossom. These domesticated turkeys weighed an impressive 40 and 41 pounds (18.1 and 18.6 kg) respectively. Another story was offered by the National Audubon Society and provided 10 Fun Facts About the Wild Turkey. The most interesting of these facts concerned the bundle of feathers sprouting from their chest is known as turkey beards, and it gets longer as the bird ages.

When I looked online, Audubon also offered an in-depth discussion on turkey beards. Turkey beards are plumes of dark brown or black feathers, more hair-like than a typical feather, that protrude from the bird’s chest. “If you had it in your hand, it has the consistency of a miniature horsetail,” says Gary Norman, a retired gamebird biologist at Virginia Department of Game and Inland Fisheries. While all adult male turkeys (toms) have beards, nearly 10% of hens also have one, although it is a smaller and wispier version. Male turkey beards are thought to be used as another tool for mate selection, but it is unknown why some female birds have them. Kelsey Sullivan, a gamebird specialist with the Maine Department of Inland Fisheries and Wildlife, says the beards can “indicate dominance and health”. Turkey beards start sprouting when youngsters are around five months old and continue to grow at a rate of nearly 5 inches (12.7 cm) a year throughout a bird’s life allowing the biologists a rough estimation of the bird’s age. While a one-year-old beards may measure only a few inches older males can have beards over 10 inches (25 cm). The longest beard length recorded on the National Turkey Wildlife Federation website is 11.75 inches (29.2 cm). Some toms even grow 2 or 3 (and even up to 13) separate beards. In the rare occasion where multiple beards are grown most are just short, wispy feathers with a single dominant cluster.

Turkeys can lose their beards several ways. Turkey beard rot is caused by vitamin deficiency and may result in the beards shearing off. Longer beards can snap from the heavy weight of snow and ice that collects on them during winter. Fraying from being dragged on the ground is also an issue. Terrain is another factor that influences beard length, and turkeys inhabiting rocky terrain may have shorter beards than those foraging across flat, sandy ground. The abundance of bearded hens varies by region and is perhaps affected by previous conservation efforts to recover Wild Turkeys. In the mid-1900’s, wildlife biologists trapped turkeys and moved them across state boundaries to restore severely depleted turkey populations due to hunting and habitat loss. Wild Turkeys have sharply rebounded and now inhabit every US state except Alaska. Wild turkey populations peaked at 7 million birds by the early 2000’s.

THOUGHTS: There are only two species of Wild Turkey; the North American (Meleagris gallopavo) and the Ocellated Turkey (Meleagris ocellata) in Central America. The domestic turkey (Meleagris gallopavo domesticus) shares their cousin’s trait by having beards, neither sex of the ocellated turkey have beards. As for the two pardoned turkeys, they will live out the remainder of their life at Farmamerica, a 360-acre agricultural interpretive center in Waseca, Minnesota. Act for all. Change is coming and it starts with you.

Mexican Wolf

November 20, 2024

Toward the back of the front section of my local newspaper was a USA Today article on a reward being offered for information on a dead wolf. The female is protected under the Endangered Species Act and was found northwest of Flagstaff, Arizona, on November 7th. The US Fish and Wildlife Service did not provide a cause of death, but the “mortality was not attributed to agency management actions”. Officials are offering a reward of US$103,500 for information that leads to “the successful prosecution” of the case. The wolf, known officially as F2979 and colloquially as “Hope”, was first GPS collared back in July. The Western Watersheds Project, a non-profit dedicated to protecting western watersheds and wildlife, shared a photo of the wolf in July during a wellness check clearly showing the collar. Cyndi Tuell, director of the project, said,” the shooter had to know she wasn’t a coyote.” The Mexican wolf is one of the most endangered mammals in North America, being driven almost to extinction in the mid-1980’s by hunting, trapping, and poisoning practices.

When I looked online, the Mexican wolf (Canis lupus baileyi), also known as the lobo mexicano or lobo, is a subspecies of gray wolf (Canis lupus) native to eastern and southeastern Arizona and western and southern New Mexico in the US and in fragmented areas of northern Mexico. The wolf originally ranged from eastern Southern California south into Baja California, east through the Sonora and Chihuahua Deserts, and into West Texas. The Mexican wolf is the smallest of North America’s gray wolf subspecies, weighing 50 to 80 pounds (23 to 36 kg) with an average height of 28 to 32 inches (71 to 81 cm) and an average length of 5.5 feet (1.7 m). It is similar to the Great Plains wolf (Canis lupus nubilus), but with a smaller, narrower skull and darker, more variable fur (pelage), which ranges from sandy to yellowish gray with black, brown, and some white highlights. The snout, inner legs, neck and undersides are white, while golden-yellow and beige hues dominate the top of the head and much of the rest of the body. The fur around the chest and neck forms a grayish black collar which flows onto the back where it is generally black all the way to the tail tip. As of 2024, there are at least 257 wild Mexican wolves in the US and 45 in Mexico. Another 380 wolves are in captive breeding programs.

There have been 92 Mexican wolf deaths recorded since 1998. Four occurred in 2012 as a result of illegal shootings. In 2015, a court ordered the US Fish and Wildlife revise the management rules after a survey done on the wolf population of the Mexican wolf in Alpine, Arizona, indicated the recovery of the species is being negatively impacted by poaching. Poaching accounted for 50% of all Mexican wolf mortalities from 2008 to 2019. In an effort to fight the slow recovery, GPS monitoring devices are being used to monitor the wolves. In 2016, 14 Mexican wolves were killed, making it the highest death count of any year since they were reintroduced into the wild in 1998. While two of the deaths were caused by officials trying to collar the animals the rest of the deaths remain under investigation.

THOUGHTS: The Mexican wolf was held in high regard in Pre-Columbian Mexico, considered a symbol of war and the Sun and referred to as Cuetzlachcojotl. The Apache call the Mexican wolf “ba’cho” or “ma’cho”, and there is a “wolf song” passed through oral tradition where the tribe used to summon the wolf’s power before battle. It is estimated up to 16% of the Mexican wolf diet may now include domestic cattle (Bos taurus), especially in locations where the cattle graze and calve year-round as opposed to seasonally. Studies suggest reports of wolf depredation on livestock are sometimes exaggerated or fabricated. That reflects the contrasting attitude as an invasive species (cattle) was introduced by Europeans. Act for all. Change is coming and it starts with you.

Yellow-legged

November 19, 2024

Inside the front section of my local newspaper was a USA Today article on the recovery efforts for a nearly extinct frog. The High Sierra lakes in Yosemite National Park have been biologically upset for over 100 years by the stocking of non-native fish. The rainbow, golden, brown, brook, and cutthroat trout, along with Atlantic salmon and grayling, were originally carried in buckets to these fishless lakes. After World War II, a generation of pilots who were adept in aerial bombing sped up the process in all but 20% of the smallest mountain lakes. While these lakes contained no fish, they were bursting with life. Within a few years of stocking the frog populations that had flourished were gone. The National Park Service ended fish stocking in the 1990’s out of concern for the native species. In 1992, Roland Knapp, a research biologist from the University of California, Santa Barbara, got permission to use gill nets to remove the fish from a small number of lakes. The frogs began to make a comeback, but in the early 2000’s research showed the arrival of amphibian chytrid fungus. The Sierra Nevada yellow-legged frog was added to the endangered species list in 2014.

When I looked online, the Sierra Nevada yellow-legged frog (Rana sierrae), also known as the Sierra Nevada Mountain yellow-legged frog, is a true frog endemic to the Sierra Nevada of California and Nevada in the US. The yellow-legged was formerly considered the southern mountain yellow-legged frog (Rana muscosa) until a 2007 study elevated the more central and northern populations to full species status and restricting the latter to the southern Sierra Nevada and southern California. Both mountain frogs are similar in appearance but are separated by differences in mitochondrial DNA. The yellow-legged grow up to 1.5 to 3.5 inches (3.8 to 8.9 cm) long and females tend to be larger than males. The frogs have brown backs, often with dark spots or bands, and yellow legs and underbellies. Considerable variance exists in species coloration and yellow-legged frogs can also be grey, red, or greenish brown with dark splotches. Tadpoles appear black or brown and require one to four years to fully develop. These frogs hibernate during the winter, staying submerged in the mud and may only be active around three months a year depending on the weather. Studies showed 92.5% of the yellow-legged populations have gone extinct and are estimated to have declined by over 90% over their range. They are considered an endangered and vulnerable species by the IUCN.

In 2006, Yosemite National Park and the Yosemite Conservancy began a project to introduce frogs into lakes without fish. In 2007, a project was started to restore frog habitat by removing non-native fish from remote sites. Once the site is fishless, lakes are inhabited by native species, including the yellow-legged frog. The ecological effects of their loss have been significant as the yellow-legged were a keystone species and important for nutrient and energy cycling in the aquatic and terrestrial ecosystems. A 2016 survey in Yosemite indicated a sevenfold increase in their numbers reported, but recent studies discovered amphibian chytrid fungus is contributing to the decline of the Sierra yellow-legged frog. Chytrid fungus leads to a usually fatal disease (Chytridiomycosis). Chytrid fungus lives on keratin which is found on the external mouthparts of tad poles and the outer skin layer of adults. Fungus growth on adults disrupts the ability to breathe through skin (osmoregulate). The species also suffers from habitat fragmentation as populations have become separated.

THOUGHTS: Stocking fish in the High Sierra’s began as early as the California Gold Rush in 1849. The fishless lakes seemed like a waste to the miners hiking into the backwoods. Stocking fish did provide food, but it nearly destroyed the delicate habitat of the high mountains. While introducing an invasive species may seem like a good idea, it is rarely the case. Life in fragile environments is especially vulnerable. Act for all. Change is coming and it starts with you.

Siamese

November 13, 2024

Today’s MSN browser featured a report on a crocodile thought to be extinct in the wild a generation ago that is making a comeback. The animals are being bred in captivity and reintroduced to their natural habitat. The conservation effort began in 2012 and last June the crocodiles laid 106 eggs and produced 60 hatchlings. There are about 1,000 of the crocodiles in the wild, including 400 in Cambodia. The species was nearly killed off by habitat destruction, poaching, and crossbreeding. Ironically, the hunters who captured, bred, and killed the crocodiles to sell their skins helped them bounce back. These captured crocs are the source of purebred, fertile crocodiles that were pulled from a population of 1.5 million (mostly hybrids) being bred for leather. After the females lay eggs, the eggs are incubated at the Phnom Tamao Wildlife Rescue Centre, allowing the crocodiles to develop before they are brought to a national park in the Cardamom Mountains. According to Pablo Sinovas of Fauna & Flora, only one in 20 crocodiles born in the wild survives, but if they are bred captively and not released until they reach 1 meter in length, “their chances of survival increase exponentially.”

When I looked online, I found the Siamese crocodile (Crocodylus siamensis), also known as the Singapore small-grain and soft-belly crocodile, is a medium-sized freshwater crocodile native to Indonesia (Borneo and possibly Java), Brunei, East Malaysia, Laos, Cambodia, Myanmar, Thailand, and Vietnam. The animal is medium-sized, with a relatively broad, smooth snout and an elevated, bony crest behind each eye. It is generally olive green but can range to a dark green. Immature crocodiles measure 4 to 5 feet (1.2 to 1.5 m) and weigh from 13 to 26 pounds (6 to 12 kg). Adults can grow to a length of 7 to 10 feet (2.1 to 3 m) and weigh from 88 to 265 pounds (40 to 120 kg). Adults have a bite force of 466 to 1,029 pounds per foot (2,073 to 4,577 N). Large males can reach over 13 feet (4 m) and weigh 770 pounds (350 kg). The species is critically endangered and already extinct in many regions.

The Siamese crocodile is critically endangered on the International Union for Conservation of Nature (IUCN) Red List and is listed on Appendix I of Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). In Cambodia, Fauna and Flora International and the Government of Cambodia’s Forestry Administration have established the Cambodian Crocodile Conservation Programme for the protection and recovery of Siamese crocodiles. This program works with a network of indigenous villages who are helping to protect key sites such as Veal Veng Marsh (Veal Veng District), the Tatai River (Thmar Bang District), and the Araeng River. The Araeng is thought to have the second largest population of Siamese crocodiles in the world but is being threatened by proposed construction of a massive dam. The Siamese take advantage of the increase in water levels during the Monsoon season (June to November) to move out of the river and onto large lakes and other local bodies of water, returning to their original habitat once water levels receding back to their usual levels. Since 2012, approximately 50 purebred Siamese crocodiles have been released into community-protected areas to reinforce the depleted wild populations.

THOUGHTS: Conservationists are also trying to protect Siamese crocodile’s habitat as 32% of the Cambodia’s tree cover was lost from 2001 to 2023 due to climate change and deforestation. Sean Pang stated, “Policymakers must recognize that addressing both climate and land use change is crucial for protecting the fate of South-east Asia’s trees, and likely for much of the region’s biodiversity.” The world’s natural resources are at peril without a combined effort by government, conservationist, and the local population. Act for all. Change is coming and it starts with you.

Mud Tracks

November 06, 2024

We have received heavy rain over the last two days, and I tried to keep the kids out of the side yard. I monitor them when I do let them out to make sure they are not mischievous (Loki is a digger and Zena is a roller) and end up covered in mud. Today the rain stopped, and I decided to brave our walk site at the lake. A portion of the walk is on a paved parking lot, but the majority covers packed dirt tracks that lead out to the end of two spits. We were the only ones there when we arrived to begin our walk. We walked to the end of the first spit and while it was wet, we were able to pick our way through the puddles without getting our paws muddy. As we were coming off the spit two 4-wheel drive pickups pulled out onto the other spit and began to cut mud tracks through the vegetation. As we walked around the paved lot on the trail the trucks moved to the area we had just left. This had a wider area that had been torn up by previous off-road activity. It did not take long for one of the trucks to get stuck axel deep in the mud. This was obviously why they had come in the first place. After extricating the truck, they drove to the boat ramp and took selfies of the mud covered truck to share with their friends. Teenagers in pickups are not the only ones that leave mud tracks.

When I looked online, I found one of the more famous mud tracks is located at Racetrack Playa in Death Valley. Racetrack playa is approximately 3 miles (4.8 km) long and 1.2 miles (1.9 km) wide and is located at a height of 3708 feet in a north-south valley east of the Panamint Range within Death Valley National Park. The playa receives only 3 inches of annual precipitation and is bounded on all sides by north-south ranges rising 1500 to 2000 feet (457 to 610 m). The surface of the playa is mainly dried clay and provides a hard, smooth, and level pavement. The sailing stones, also called sliding or walking rocks, move and inscribe long tracks along a smooth valley floor without animal intervention. The movement of the rocks occurs when large, thin sheets of ice floating on a brief winter pond break up in the sun. Rocks weighing up to 705.5 pounds (320 kg) travel across the playa and leave mud tracks. Stones with rough bottoms leave straight striated tracks, while those with smooth bottoms tend to wander. The mud trails differ in both direction and length. Rocks that start next to each other may travel parallel for a time and then one abruptly changes direction to the left, right, or even back to the direction from which it came. This phenomenon has been documented since 1948 and is not unique to Racetrack Playa. Tracks in the mud have been observed around the world.

Traditionally, these rocks were considered to be pushed by wind over a wet and slippery playa surface but observations from 2014 called this assumption into question and several aspects of the mud tracks remain a mystery. A thorough system was put up to investigate the rock movement that included a weather station near the playa, time-lapse cameras centered on the southeast corner, and 15 GPS-equipped boulders on the surface. The researchers went to the location for maintenance and data retrieval 5-8 times per year and from November to March of each year the time-lapse camera recorded hourly conditions. Interwoof GPS loggers were also installed in limestone blocks northeast of natural stones and captured GPS and temperature data every 60 minutes. The GPS trackers began recording constantly at one-second intervals after being triggered. The shape of the shallow lake named Ontario Lacus on Saturn’s moon Titan has been compared to that of Racetrack Playa.

THOUGHTS: Despite the signs and barriers forbidding driving on the surface and making mud tracks posted along parts of the playa, park rangers still find new tire tracks on it every couple of years. The walking rocks will not slide if the surface is defaced. Destruction of such natural wonders takes decades to repair. Act for all. Change is coming and it starts with you.