Snakehead

May 26, 2026

Last Friday Melissa and I decided to treat ourselves to a visit to a Wildlife Management Area (WMA) along the Arkansas River that has been getting constant sightings on the Arkansas Birders group. The area is not too far from our house, and I had even visited once before while looking for a place to fish. We did several errands on our way out of town and by the time we were leaving rain had started to fall. By the time we reached the WMA the rain was light but steady. The last section of the road was dirt but well maintained. This area in an old oxbow (curve) that has formed a lake apart from the main channel of the river. The WMA now has 2,180 acres (882 ha) and is primarily managed for migratory waterfowl and wetland restoration by the Arkansas Game and Fish (AG&F) Commission and Ducks Unlimited. This makes the site popular destination for local hunters and bird watchers. Despite all the amazing bird photos we had seen, we saw very few birds. The waterfowl that had been present when I last visited were non-existent (afraid to get wet?) and there were no birds fliting in the trees. As we drove slowly through the area we crossed over a bridge on a backwater section of the lake. I stopped because there were dozens of 1-pound (0.92-l) gas canisters floating in the water. Next to a sunken log in the bayou was a 30-inch (76 cm) snakehead.

When I went online, I found the northern snakehead (Channa argus) is a species of snakehead fish native to temperate East Asia, in China, Russia, North Korea, and South Korea. Their natural range goes from the Amur River watershed in Siberia and Manchuria down to Hainan, China. Snakeheads are an important food fish and one of the most cultivated in its native region, with 562,179 tons (510,000 tonnes) annual production worldwide. This has led to the fish being exported throughout the world and has resulted in established non-native populations in Central Asia and North America. The species has a long dorsal fin with 49 to 50 rays, an anal fin with 31 to 32 rays, a small, anteriorly depressed head, eyes above the middle part of the upper jaw, and a large mouth extending well beyond the eye. The small, slender teeth form velvety bands (villiform) with large canines on the lower jaw and upper mouth plate (palatines). It is generally reported to reach up to 3 feet 3 inches (100 cm) in length, but specimens approaching 4 feet 11 inches (150 cm) are known according to Russian ichthyologists (fish scientists). The largest specimen registered by the International Game Fish Association weighs 21 pounds 0 ounces (9.53 kg). In the US, it is found in Pennsylvania, Virginia, West Virginia, Delaware, Maryland, North Carolina, Arkansas, Missouri, and Mississippi.

The northern snakehead first appeared in US news when a fisherman discovered one in a Maryland pond in 2002. In 2008, the fish was found in drainage ditches in Arkansas because of a commercial fish-farming accident, and flooding may have allowed the species to spread into the nearby White River which would allow an eventual population in the Arkansas and Mississippi Rivers. Arkansas is the birthplace of warmwater aquaculture in the US and currently ranks as the second-largest aquaculture-producing state. It is also the epicenter for the four species of invasive Asian Carp (Hypophthalmichthys molitrix, Hypophthalmichthys nobilis, Ctenopharyngodon Idella, and Mylopharyngodon piceus). The invasive snakehead can now be added to the list. All five species are said to be quite edible, but getting the American palate to try the fish is a harder sell.

THOUGHTS: AG&F says if you encounter the northern snakehead, silver, bighead, or black carp, kill it (humanely) and report your encounter to the Arkansas Game and Fish Commission Aquatic Nuisance Species coordinator by email (reportans@agfc.ar.gov). It is illegal to transport these fish species alive. While I did not catch the snakehead, I did report it. Invasive species may never be eradicated, but with help they can be managed. Act for all. Change will come and it starts with you.

Oriole

May 17, 2026

I try to put a variety of seeds in the 11 feeders we have on our pool deck. I purposefully dedicated the two farthest feeders under the trees to the eastern gray squirrels (Sciurus carolinensis). I put shelled peanuts (Arachis hypogaea) and a corn (Aea mays) log in one and cracked corn in the other. I did this as it was a losing battle to try and keep the squirrels out of all the feeders. I found the northern cardinals (Cardinalis cardinalis) and common grackles (Quiscalus quiscula) prefer these feeders, while the squirrels run along the fence to feast on the two feeders with common sunflower (Helianthus annuus) seed on the other side of the deck. I have also stocked meal worms (larva of Tenebrio molitor), two feeders with roasted peanut chips, and a wild bird seed mix (cereal grains of Family, Poaceae). I currently stock the two window feeders with safflower (Carthamus tinctorius) seed, but this is messy and I am considering switching back to sunflower chips. The last feeder is a suet corn cake. While most of the birds which visit are the same every day, we do get an occasional new species. Last week the new arrival was a Baltimore oriole.

When I went online, I found The Baltimore oriole (Icterus galbula) is a small blackbird of the icterus family common in eastern North America as a migratory breeding bird. The species was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae under the binomial name Coracias galbula. The bird received its name from the resemblance of the male’s colors to those on the coat-of-arms of 17th-century English Baron Lord Baltimore. There have been observations of interbreeding between the Baltimore oriole and the western Bullock’s oriole (Icterus bullockii) which led to both being classified as a single species, called the northern oriole, from 1973 to 1995. Research by James Rising, a professor of zoology at the University of Toronto, and others showed that the two birds did not interbreed significantly and they are again classified as different species. The Baltimore Oriole is the state bird of Maryland, and the namesake and mascot for the Baltimore Orioles baseball team.

Melissa has a friend who has been texting her pictures of an oriole who has been visiting her feeder. She put out a tray with orange (Citrus sinensis) slices and grape jelly, and they clean her out several times a day. We have only seen the oriole twice on the suet cake, but I figured we might get more activity with orange slices and grape jelly. A number of other birds (and squirrels) are fond of oranges so this may bring other birds as well. I followed the friend’s example and initially set the feeder next to the suet cake, but the grackles pounced on the feeder looking for the peanut chips and knocked it to the ground. This afternoon I set the oriole feeder back up and moved it farther away from the others. Hopefully this will work and attract an oriole before they migrate through our area.

THOUGHTS: When I was growing up in north central Kansas there was a Baltimore oriole that would nest in the branches of a tree outside my second story window. This was a massive American elm tree (Ulmus americana) that stretched over the enclosed side porch. I was fascinated by the bird and its flashy orange and black body. I was also into collecting baseball cards and listening to my older brother’s radio playing baseball as we fell asleep at night. I became a huge fan of the Orioles (team) in part because of my connection to the bird outside my window, along with the fact they became an American League powerhouse in the 1960’s, wining two pennants and their first World Series. Although I now (mostly) follow the Kansas City Royals baseball team, I still have a fond spot for the Orioles. Most of our traditions and habits were ingrained in us during our youth. That is why it is important to train a child to be willing to reach out and embrace others. Act for all. Change is coming and it starts with you.

Transition

May 14, 2026

Several days ago, I saw what I thought to be a new bird species in my feeders. This grey bird was about the size of a robin but was busy feeding on the suet cake I had placed on the back fence. I was able to snap a photo and then checked the picture against my Google identification app (I find it easier than either my Audubon or Nat Geo birding apps). I was surprised to learn this was an immature Eastern Starling. This morning Melissa called my attention to this same strange bird she had seen feeding on the suet. She was surprised as an adult starling was collecting seed from the suet cake and feeding it to the larger brown bird. She sent me a picture of the two and I recognized the speckled white feathers of the (springtime) adult and the brown feathers of the immature offspring. Both the parent and young were in different stages of plumage transition.

When I went online, I found the European starling (Sturnus vulgaris), also known as the Eastern Starling, undergoes dramatic feather color changes annually. They transition from a spotted winter plumage to glossy, iridescent black in spring. Juveniles are drab brown, transitioning to speckled, then glossy adult plumage over their first year. Juveniles transition from Summer to Early Fall. Freshly fledged (kicked out of the nest) juveniles are plain grayish-brown or dusky brown with a dark bill. From late Fall to Winter the immature birds undergo a post-juvenile molt and then gain iridescent black feathers that are heavily speckled with white and cream-colored spots. Breeding or adult have the same speckled winter colors and during Spring to Summer experience “wear,” as the white, brittle tips of the winter feathers break off, leaving a glossy, iridescent dark plumage (green, purple, and blue) with a yellow bill. This unique “wear molt” allows the starling to change its appearance completely without the high energy cost of growing new feathers in the spring.

After rousing, I came outside to sit and watch the feeders with Melissa. She has been sending me interesting pictures of a variety of birds in the last several days. It appears Melissa has been coming outside around 8:30 am for her morning coffee and has seen a flurry of activity on the feeders. This morning the female eastern bluebird (Sialia sialis) was bringing newly procured bugs to the bird house on the pool deck. Her arrival was met with the raucous sound of several young vying for a meal. There was also a second sighting of an orange bird about the size of an American robin (Turdus migratorius) feeding on the suet. This time she was able to take a photo before the bird quickly flew away. Although the bird was partially blocked by a starling fighting for the same cake, it appears to have been a Baltimore oriole (Icterus galbula). Melissa said she goes inside around 11:00 am as the “cool” birds are gone by then and it becomes a fight between the northern mockingbird (Mimus polyglottos) and the common grackles (Quiscalus quiscula). It is only recently the starlings have been present at the 11:00 am transition. I need to get up earlier to see the show.

THOUGHTS: After the 11:00 am transition Melissa went back inside. Lately, the temps are warming up, and the sun has been breaking through the overcast sky by this time. I had re-stocked the feeders when I came out and even knowing I had missed the real show, I decided to stick around and see what might transpire. The mockingbird was making a back-and-forth trip to the meal worms, and I wondered if it was also feeding young. The suet cake was descended upon by a group of six starlings, including two pairs of adult and young feeding at the cake together. This is the time of year where birds transition from the nest to fledgling on the ground to joining parents to learn to feed themselves. Humans go through a similar transition, but it takes a dozen or more years and it literally takes a village to do it right. We need support and not criticism. Act for all. Change is coming and it starts with you.

Astoria

February 16, 2026

Scrolling the NY Times Headlines feed, I came across a bird who has captured the attention of New Yorkers. The bird arrived in Manhattan’s Battery Park and eventually settled in the area near the Sea Glass Carousel, just north of the Staten Island Ferry terminal. Three human women have become her self-appointed caretakers and visit her daily. New Yorker’s regularly fall in love with celebrity wildlife, including unusual ducks, a pair of coyotes, and Flaco the escaped owl in Central Park. Sunny Corrao, the deputy director of the city parks department’s wildlife unit, said, “She’s the only known turkey in Manhattan, “but this is not unusual.” A turkey was known to hang out in Inwood Hill Park in Upper Manhattan in the past and there are large flocks in the Bronx and on Staten Island. Smaller groups come and go to Queens and Brooklyn. Astoria got her name because she was first spotted in Astoria, Queens, before making her way to Roosevelt Island and, finally, Manhattan.

When I went online, I found Astoria is a descendant of the wild turkey (Meleagris gallopavo) first domesticated in Pre-Columbian Mexico. The Classical Nahuatl word for the turkey (huehxōlō-tl) and the Spanish guajolote are still used in modern Mexico. Mayan aristocrats and priests had a special connection to turkeys, with ideograms of the birds appearing in Mayan manuscripts. Spanish chroniclers Bernal Díaz del Castillo and Father Bernardino de Sahagún describe the multitude of food (both raw fruits and vegetables and prepared dishes) offered in the vast markets (tianguis) of Tenochtitlán, noting there were tamales made of turkeys, iguanas, chocolate, vegetables, and fruits. Turkeys were first exported to Europe via Spain around 1519 and gained immediate popularity among the aristocratic classes. English settlers brought turkeys to North America during the 17th century. There were an estimated 10 million turkeys in the US during the 17th century, but by the 1930’s only 30,000 remained. In the 1960’s and 1970’s, biologists started trapping wild turkeys and re-introducing them into other states.

The three self-appointed caretakers of Astoria coordinate their schedules in group chats and text messages, sharing photos and updates on Astoria’s location and condition. Keiko Komiya visits the turkey in the morning, and Stella Hamilton and Anke Frohlich are generally there in the afternoon, and for bedtime. Astoria spends her days strutting around on the ground, then every evening (at 20 minutes after sunset) she flies up into a tree to spend the night. Hamilton is a retired nurse and birder who was previously a big fan of Flaco, the Eurasian eagle owl set free from Central Park Zoo. Komiya is an English student and avid birder whose first New York City celebrity bird was the mandarin duck she photographed daily in 2018. Frohlich started photographing birds during the covid-19 pandemic and runs an alternative healing practice in Greenwich Village which allows her to give the birds priority. The women do not worry about Astoria, but everything and everyone else. Young kids chase her, dogs scare her, and people press on her for selfies. Astoria also crosses State Street to bask in the warmth emanating from the Starbucks on the corner and the friends fear she will be hit by a vehicle. Their fears are not unfounded.

THOUGHTS: While Astoria has grown a devoted fan club, she is not the only wild Turkey residing in New York. “New York City is actually great habitat for a wild turkey,” Jessica Wilson, the executive director of NYC Bird Alliance, said. She noted that the birds are native to the area, have plenty to eat here and do not necessarily need turkey friends. “They often join flocks, but they also are fine on their own — and in general, we try not to interfere with their social life.” Perhaps we should treat people with the same respect. Act for all. Change is coming and it starts with you.

DET

February 14, 2026

I found it appropriate that in the middle of the Great Backyard Bird Count 2026 (February 13 to 16, 2026) that my Sunday paper (delivered on Saturday) would have a USA Today article on an annual lottery for the bald eagle tour in Monroe, Michigan. There were approximately 1,200 entries for this year’s 30 lottery winners and their guests. “It’s the largest number since the event began in 2008. It shattered our previous record,” said Maddie Drury, park ranger with the US Fish & Wildlife Service who sponsors the tour. Winners were driven out to the wooded area on the south end of the power plant, where Plum Creek and the power plant’s warm water discharge meets Lake Erie. In winter the warm water draws fish, and the fish draw predators. Amanda Schaub, communications strategist for the plant said, “Consistent with our Michigan Public Service Commission approved plan, the plant is scheduled to retire in 2032.” DET Energy is committed to working closely with the community as they plan for the site’s future.

When I went online, I found several endangered or rare species have a home at the Detroit Edison (DTE) power plant facility. Since the mid-1990’s, DTE Energy has supported peregrine falcon (Falco peregrinus) reintroduction and breeding programs in southeastern Michigan and near their power plants. Employees assist with banding, tracking and rescuing at-risk chicks. Peregrines have been recorded nesting on the Monroe Power Plant grounds since 1994. Over 100 adult and juvenile bald eagles (Haliaeetus leucocephalus) have been counted near the shoreline at the Monroe Power Plant and nest regularly at the Fermi 2 Power Plant. Apprentice linemen install utility poles in various bird projects, such as eagle habitat at the Lake Erie Metropark and Humbug Island within the Detroit River International Wildlife Refuge, as well as a great blue heron rookery at Lyon Oaks County Park. These projects foster the bird population while giving apprentice linemen experience in installing tall poles without energized lines or power transmission equipment.

The DET Monroe Power Plant is home to other endangered species. The American lotus (Nelumbo lutea) is listed as a threatened species in Michigan. The plant naturally cleans the water in which it lives, which is important for the native fish and wildlife. In partnership with the Lotus Garden Club of Monroe, DTE Energy opens the Monroe Power Plant property for guided tours of the flowerbeds. Lake Sturgeon (Huso fulvescens) are the longest-living fish species in Michigan, with a lifespan of up to 100 years. They can be over eight feet (2.5 m) in length and weigh 800 pounds (363 kg). Sturgeons are listed as threatened or endangered by 19 of the 20 states within their original range in the US. DTE deposited 765 tons (694 mt) of coal cinders (a byproduct of coal combustion), cobble and broken limestone in the Detroit River off Belle Isle to create spawning beds. Common Terns (Sterna hirundo) once numbered in the thousands along the Detroit River but now only 250 breeding pairs can be found there. DTE Energy partnered with others to create an artificial nesting island and nesting habitat.

THOUGHTS: Drury, who is based at the Detroit River International Wildlife Refuge in Trenton, calls bald eagles the “most successful conservation story of the US”. For decades the insecticide DDT was widely used to kill insects. Fish ate treated vegetation, birds ate the fish, and affected bald eagles laid fewer viable eggs. In 1963, the continental US had just 417 mating pairs of bald eagles. DDT was banned in 1972, and the eagles have bounced back. In 2007, the US had 9,700 bald eagle mating pairs, and the bald eagle was removed from the endangered list. By 2020, there were 71,000 breeding pairs. The lottery for the DET Monroe Power Plant eagle tour typically opens right after Thanksgiving. Act for all. Change is coming and it starts with you.

Birds 2025

January 31, 2026

Today’s local newspaper (“Sunday”) ran a front-page story on how the cold weather is prime birding season around back yards and feeders. This reminded me that I am even later this year in reporting my annual birding totals. Once again, I saw several red-tailed hawks (Buteo jamaicensis) on the power lines going to and from town but was unable to get a picture, so they were not added to my count. While I was able to take my usual trip to the wildlife area this year and did record five different species (long range). However, the lighting was so bad I was unable to identify any but the wild turkey (Meleagris gallopavo) flock I noticed while trying to capture several deer (again long range) in a filed. Another miss. The end-of-year presence on my feeders was good as the cold weather brought the sparrows (genus, Passer), along with house (Haemorhous mexicanus) and purple (Haemorhous purpureus) finches. The northern cardinals (Cardinalis cardinalis) did come back in mass but I saw only one or two blue jays (Cyanocitta cristata). I have yet to clean out the bluebird (Sialia sialis) house but have seen the sparrows nosing around the entrance so I will need to get rid of the old debris for this year’s nesting.

All that said leads to my “great reveal” concerning my birder totals for 2025. The number of feeders has fluctuated throughout the year as I began with 12 feeders offering different types of food. The squirrels (Sciurus carolinensis) and grackles (Quiscalas quiscula) managed to take out my camera feeder, and the finches have all but abandoned the thistle seed feeder for some reason. I also switched to safflower kernels rather than black oil sunflower in my two window feeders hoping to discourage the squirrels (it sort of works). That leaves me with 9 active seed feeders to go along with the 9 hummingbird feeders. Now, on to the results. You may recall I recorded 26 species in my first year (2020), ended with a high of 52 species in 2021, dropped to 44 species in 2022, a low of 30 species in 2023, and then rebounded to 39 species in 2024. During 2025 I was able to rise a little higher and recorded 44 different species. My European sightings happened again as we took two trips, one to the Greek Isles (9 birds) and another up the Danube River (8 birds). The bus ride to the Neuschwanstein Castle (Disney’s type site for his princess castles) also yielded 4 different species of raptors, but I was unable to document them.

Most of my sightings have been limited to the immediate area, but we are planning to expand that during 2026. We are taking the RV along the interior to the Atlantic side of Florida and then back along the Gulf of Mexico as our return. This will hopefully produce some new shore bird sightings. We are then driving across Oklahoma to Arizona with a return through Utah. This should record a few species of desert birds. Then we are scheduled for an Alaskan cruise in June which should score some Pacific birds. I am hoping between our trips I can raise my totals (and overall species count) to new levels this year. We will see.

THOUGHTS: I am looking forward to participating in the Great Backyard Bird Count 2026 again this year. The 2025 count had hundreds or thousands of people from all over the world and found 8,078 species of the world’s known species, or 158 more than in 2024. Be sure to mark your calendars for the Great Backyard Bird Count 2026 (February 13 to February 16, 2026). You can sign up and find how to participate at https://www.birdcount.org/participate. Once again, 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.

Snake-tail

December 30, 2025

It seems fitting that just before New Years I come across an article on ending relationships. Female praying mantises are notorious for eating their mates during or after sex. According to Christopher Oufiero, head of the Towson University Mantis Lab, mantis has some of the most diverse camouflage strategies in the animal kingdom and much of mantis behavior, especially mating, remains a mystery. “Mantises are good at not being found. It’s kind of what they do,” says Lohitashwa Garikipati, a doctoral student at the American Museum of Natural History in New York. However, Oufiero and Garikipati were part of a study that found a dwarf mantis species in which males avoid this fate with an elaborate dance where it moves its abdomen. Sometimes this is sinuously like the coils of a serpent and sometimes jerkily like the tail of a rattlesnake. Their behavior inspires its name, the snake-tail mantis.

When I went online, I found the snake-tail mantises (Ameles serpentiscauda) are in an order of insects (Mantodea) that contain over 2,400 species in about 460 genera in 33 families. The discovery of the snake-tail mantis began with a chance encounter in the summer of 2024 when on a remote beach in Sardinia, an Italian island in the Mediterranean Sea. Battiston’s colleague Oscar Maioglio spotted some dwarf mantises on shrubs along the shoreline he thought resembled a known species of dwarf mantis (Ameles andreae), except that their wings were smaller than expected. He collected a few individuals to rear back in his lab. When he and Maioglio saw the specimens mating they knew these mantises did not belong to any other known species. The small wings and serpentine courtship dance of the collected specimens strongly suggested they belonged to a unique, never-before-documented species, and genetic analyses confirmed it.

One major open question is the function of these courtship displays. Whatever the deeper meaning, scientists theorize that performing a courtship dance reduces the male’s risk of the female eating him after mating. It seems to succeed as the researchers observed no sexual cannibalism among the lab-reared snake-tail mantises. “Why or how selection for this mating display may have occurred remains to be seen,” says Garikipati. “But I think it is an interesting clue that tells us that these little animals are probably a lot more complicated than we give them credit for.” There is some urgency behind Battiston’s eagerness to learn more about the snake-tail mantis. As far as he and his colleagues can tell, the new species is only found in a restricted area of a few hundred yards along the Sardinian coastline. While most of this habitat lies inside a protected area, increasing tourism and overgrazing by sheep and goats could threaten the entire species’ existence. To ensure the future of the snake-tail mantis, Battiston and his colleagues have proposed that the IUCN categorize it as Critically Endangered and recommended stricter measures to preserve its habitat.

THOUGHTS: While the male snake-tail mantis avoids the female abruptly ending the relationship, many human pairings end around Christmas and New Year’s. Psychology Today says the holidays highlight how reality may not match one’s ideal. The gift-giving, travel and parties also increase stress around money, a top area of conflict. Meeting parents or navigating whose family to visit creates further tension and pressure, along with a perceived pressure to “define” the relationship. The New Year acts as a natural reset point for evaluating life choices and can lead to a post-holiday breakup surge, causing January to become “breakup month”. While breaking up may seem like getting your head bitten off, at least you are not a (male) mantis. Relationships require work. Act for all. Change is coming and it starts with you.

Iguana

November 11, 2025

Credit…Daniel Mulcahy

The Morning Read of the NY Times feed included an article on a possible reprieve for a previously invasive reptile species. Biologists say DNA evidence proves the lizard landed on Clarion Island nearly half a million years ago, long before any humans might have transported them from the mainland. Researchers reported the discovery last month in the journal Ecology and Evolution, and the finding means that the animals should be able to continue living on Clarion Island, a remote, mostly uninhabited Mexican archipelago in the Pacific Ocean. There are around 100 iguanas there, and scientists and locals alike assumed that they had been introduced by humans in the late 20th century because they had gone unmentioned in prior accounts of the island’s fauna. “It was all speculative that they were introduced — no one ever tested it,” said Daniel Mulcahy, an evolutionary biologist at the Museum of Natural History in Berlin who is an author of the new study. The government was planning to exterminate the invaders to protect island’s delicate ecosystem. Mulcahy and his colleagues compared mitochondrial DNA, passed down maternally, from the Clarion iguanas and the mainland spiny-tailed iguanas and found a 1.5 % difference in their DNA. That meant these spiny-tailed iguana are genetically distinct and could not be recent invaders.

When I went online, I found the spiny-tailed iguana (Ctenosaura pectinata) is a species of is a species of iguanid lizard found in eastern Mexico and extreme western Guatemala. This iguana has distinctive keeled scales on its long tail, to which its common name refers. It is one of the larger members of the genus Ctenosaura, capable of growing to 4.3 feet (1.3 m) in total length (including tail), with females being slightly smaller than males at 3.3 feet (1.0 m). It usually has a brown or grey-brown colored back (dorsally), with a yellowish underbelly (ventral surface). It has a crest of long spines which extend down the center of its back. Mating generally occurs in spring with the male showing dominance and interest by head bobbing before chasing the female until he can catch her and subdue her. Within eight to ten weeks, the female will dig a nest and lay clutches of up to 24 eggs which hatch in 90 days with the babies digging their way out of the sand. Hatchlings are often bright green with no body pattern and juveniles are typically green with brown markings, although all-brown hatchlings have been recorded.

Some wonder how a 4-foot (1.2 m) black-and-yellow lizard went unnoticed on Clarion Island for decades. Clarion’s landscape has changed dramatically in recent years. The island was covered in prickly pear cactus (genus, Opuntiathat) that made exploration difficult, but was consumed by sheep (Ovis aries) and pigs (Sus domesticus) introduced by thew Mexican Navy in the 1970’s. Those animals are gone and a shrubland community (chaparral) remains. The iguanas are wary of humans and hide when approached. The destruction by sheep and pigs underscores the damage invasive animals can cause. Island ecosystems are particularly vulnerable. Rayna Bell, an evolutionary biologist at the California Academy of Sciences said, “This type of work is fundamental to conserving some of the world’s most unique and imperiled diversity.” Mulcahy’s colleagues are working to spread the news to government officials in Mexico to stop the eradication program.

THOUGHTS: The spiny-tail iguana is a traditional food in Mexico, listed as “Least Concern” by the IUCN Redlist, but the species is listed on the Mexican Red List as threatened and it is illegal to hunt them. Their presence on Clarion suggests a 700-mile trip on a floating mat of vegetation. It would be the second-longest known iguana aquatic journey, topped by another species of iguanas traveling 5,000 miles from North America to Fiji. Humans thought the 1947 Kon-Tiki expedition was amazing. We are always outdone by nature. Act for all. Change is coming and it starts with you.

Pterodactylus

September 24, 2025

Toward the back of the front section of my local newspaper was a Reuters article about the demise of two flying reptiles. Scientists suggest both specimens were caught in the powerful winds of tropical storms which snapped the upper arm bone (humerus) that helped support its membranous wing, then flung the helpless animal into a lagoon where they drowned and were covered by mud. The exact same wind-caused fracture appeared during examinations on fossils of two individuals unearthed years ago in separate locales in the southern German state of Bavaria. The fossils, of slightly different ages, were stored in two museum collections. Paleontologist Rab Smyth of the American Museum of Natural History in New York, and lead author of the study published in the journal Current Biology, said, “We noticed the injuries completely by chance.” Researchers nicknamed the two hatchlings Lucky and Lucky II. While it was bad luck to be doomed by storms, it was good luck that paleontologists have been able to learn from their fossils about the anatomy of young pterosaurs.

When I went online, I found Pterodactylus (Ancient Greek, ‘winged finger’) is a genus of extinct pterosaurs thought to contain a single species (Pterodactylus antiquus). This was the first pterosaur to be named and identified as a flying reptile and one of the first prehistoric reptiles to ever be discovered. Fossil remains of Pterodactylus are primarily found in the Solnhofen limestone of Bavaria, Germany, which dates from the Late Jurassic period (Tithonian stage), about 150.8 to 148.5 million years ago, but fragmentary remains have been identified elsewhere in Europe and Africa. Pterodactylus was a small pterosaur, with an adult wingspan at about 3 feet (1 m). They possessed relatively short and broad wings, a lightly built body and a long, pointed beak lined with small, conical teeth. Pterodactylus was a generalist carnivore that fed on invertebrates and vertebrates. The wings were formed by a skin and muscle membrane stretching from its elongated fourth finger to its hind limbs and supported internally by collagen fibers and externally by keratinous ridges. The species was small compared to other famous genera such as Pteranodon longiceps and Quetzalcoatlus northropi which lived during the Late Cretaceous.

Pterodactylus was the first pterosaur described by science in 1784 and fossils of more than 50 individuals of various sizes have been discovered. The two in the study were a few days to weeks old when they died, with a wingspan less than 8 inches (20 cm). The fossils of both animals show the upper arm bone broken in a diagonal split along the shaft which suggests the wing was bent under tremendous pressure (i.e., strong winds or waves during a storm). The storm likely carried them several miles (km), from their original habitat and into the lagoon. Smyth said, “While a broken wing alone probably would not have been immediately fatal, the fact that they sank quickly to the bottom suggests they inhaled water and drowned.” They were rapidly buried in the fine sediments of the storm beds where the oxygen-poor conditions protected their delicate bodies from scavengers.

THOUGHTS: I was fascinated with dinosaurs as a boy and one of my favorites was Pterodactylus. My small plastic models were marked with the name, length, and weight that I had committed to memory. Paleontology began as a formal science in the early 1800’s and the discovery of dinosaurs in England was crucial in establishing the field. The end of the 1960’s saw a surge in dinosaur research activity that is ongoing. The large predators first depicted as sluggish creatures have been replaced by agile (often smaller) individuals. When we take time to examine what we do not know it always leads to new comprehension. That is also true with other people and cultures. Act for all. Change is coming and it starts with you.

Digger

August 21, 2025

Following my disappointment fishing while at the coast last week I decided to walk through the beach community and see if I could spot some birds that were not yet on my list. I took the road through the community first to try and spot land birds. I was able to see two species I already recorded, an American Crow (Corvus brachyrhynchos) and a flock of house sparrows (Passer domesticus). It was not until I returned along the beach that I picked out several forms of gulls (California gull, Larus californicus; western gull, Larus occidentalis; short-billed gull, Larus brachyrhynchus) and a flock of white-winged scoter (Melanitta deglandi) ducks. The beaches along the Puget Sound tend to be small well-worn rock rather than the sand I associat with other coasts. This is harder to walk on, and it took me a while to get back to the house. When I arrived, my daughter-in-law showed me a picture of the unusual wasp they had encountered on their beach walk (other direction). It was a large golden digger sand wasp.

When I went online, I found the golden digger sand wasp (Sphex ichneumoneus), or great golden digger wasp or great golden sand digger, is a wasp in the family Sphecidae. The wasp’s name comes from the Greek word for “tracker,” and is most well-known for its parasitic nesting behavior. It is identified by the golden pubescence on its head and thorax (chest), its reddish orange legs, and partly reddish orange body. Golden hairs cover the head and thorax (hence “golden”). The digger has a long, slender waist (petiole). Their hind region (metasoma) is black with the first couple of segments a brilliant orange-red that matches their legs. Size varies from 1/2 to over 1 inch (1-1/4 to 2.5+ cm) long. This wasp is native to the Western Hemisphere, from Canada to South America, and provisions its young with various types of paralyzed Orthoptera (grasshoppers and crickets).

From May through August, great golden digger wasp females build their nests in sandy soils. These consist of a descending shaft and side chambers for the young at right angles. This makes it difficult to pull prey into a brood chamber without getting stuck and is one possible reason why the wasp always checks to ensure the path is clear before pulling its prey down by its antennae. Female wasps commonly build their burrows nearby those of other females of their species and may even share a nest. However, they will fight other wasps if they encounter them inside their burrow during prey retrieval. By inspecting the unattended nest, the wasp avoids risking an encounter with another wasp while carrying its prey. The digger will track and hunt their prey (i.e., tracker) and sting it with a paralyzing venom that keeps it alive, then flies (or drags) the prey to the nest. At the nest the digger wasp lays down their paralyzed prey and enters her tunnel and checks to ensure that all is well. Then she brings the prey down into a side chamber, lays an egg on the prey, and seals the chamber. When the egg hatches it feeds on the prey through the winter, and the new wasp emerges from its side chamber in the spring and begins the cycle again.

THOUGHTS: The golden digger sand wasp is like the cicada killer (Sphecius speciosus) I saw last week in Arkansas. Both are large, solitary, build nests in the ground, are harmless to humans, and do not defend their nest or behave aggressively. While they have stingers, they rarely sting humans unless they are stepped on. The digger is a pollinator that preys on insects that are harmful and are helpful to have around your garden (or beach house!). These are possibly the only wasps known to be attacked by birds. House sparrows and American robins (Turdus migratorius) will attack to force the digger to drop its prey for the bird to eat. I guess both the young and the birds are looking for an easy meal. Act for all. Change is coming and it starts with you.