House Finch

November 05, 2024

Melissa received a window box bird feeder as a gift from our son and family earlier this year. The feeder has suction cups on the back that allow it to attach directly to the glass. I placed the feeder in the bay window in the breakfast nook that serves as her home office so she can enjoy the bird activity while working. I fill the two sections of the feeder with different seeds to make it more attractive to the small birds willing to approach the window. One side has always had black sunflower seed (Helianthus annuus). I have varied the seed on the other side, but it currently has cracked safflower seed (Carthamus tinctorius). This feeder has become a preference for the eastern bluebirds (Sialia sialis), the sparrows (Genus, Zonotrichia), and purple finches (Haemorhous purpureus) that frequent our back yard. On Sunday I noticed what seemed to be a new species at the feeder. This was similar to the finches I have been watching but somehow seemed different. When I checked my bird ID this turned out to be a house finch.

When I looked online, I found the house finch (Haemorhous mexicanus) is a North American bird in the finch family. The species is native to Mexico and southwestern US but has been introduced to the eastern part of North America and Hawaii and is now found year-round throughout the US and most of Mexico. The house finch is a moderate-sized bird at 5 to 6 inches (12.5 to 15 cm) long, with a wingspan of 8 to 10 inches (20 to 25 cm). Body mass can vary from 9⁄16 to 15⁄16 ounces (16 to 27 g) with an average weight of 3⁄4 ounces (21 g). Adults have a long, square-tipped brown tail and are a brown or dull-brown color across the back with some shading into deep gray on the wing feathers. Breast and belly feathers may be streaked, and the flanks usually are. Most adult males have reddish heads, necks, and shoulders, and the color can extend to the belly and down the back as well. Male coloration varies in intensity with the seasons as it is derived from a diet of berries and fruits. Adult females have brown upperparts and streaked underparts. There are around 40 million house finches across North America, making it the second-most populous finch behind the American goldfinch.

The house finch and purple finch are closely related species and can be hard to identify. The main difference between the two species is the amount of red on the bird and the pattern on the face. They have similar body shapes, but the bill of the purple finch is a bit bigger, more conical, and deeper, while that of the House Finch has a more rounded shape. Both species get along with other small birds except during breeding season when they become protective of their territory. The other big difference comes with habitat. The house finch prefers a wide range of arid, open, and semi-open habitats, and will live in oak-juniper woodlands, open coniferous forests, and shrubby, and desert habitats from sea level to more than 11,000 feet, the house finch avoids dense forest of the purple finch. A small flock of house finch in Long Island, NY, escaped captivity in 1939 and has become the common bird of the eastern US and southern Canada. Their population has grown and expanded to millions of birds that thrive in urban and suburban places, preferring parks and urban settings with conifers and ornamental trees. Their songs are similar, but the purple finch sings a more melodious and “warbling” song, while the house finch incorporates chattering and trilled sounds.

THOUGHTS: Another similarity between the house finch and purple finch is they are both attracted to bird feeders. This explains why I have seen both species (and probably not realized it until now) in our backyard. Neither species is rare, but the house seems more urban and the purple more forest. Nature tells us that when the same species spend enough time separated and/or refusing to interact they grow apart and eventually become distinct. While humans have not yet reached that point as a species, it is a good lesson to be learned. Act for all. Change is coming and it starts with you.