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BASIC DESCRIPTION:
The House Finch is a recent introduction from western into eastern North America (and Hawaii), but it has received a warmer reception than other arrivals like the European Starling and House Sparrow. That’s partly due to the cheerful red head and breast of males, and to the bird’s long, twittering song, which can now be heard in most of the neighborhoods of the continent. If you haven’t seen one recently, chances are you can find one at the next bird feeder you come across.
Size & Shape:
House Finches are small-bodied finches with fairly large beaks and somewhat long, flat heads. The wings are short, making the tail seem long by comparison. Many finches have distinctly notched tails, but the House Finch has a relatively shallow notch in its tail.
MEASUREMENTS
Both Sexes
Length: 5.1-5.5 in (13-14 cm)
Weight: 0.6-0.9 oz (16-27 g)
Wingspan: 7.9-9.8 in (20-25 cm)
Color Pattern:
Adult males are rosy red around the face and upper breast, with streaky brown back, belly and tail. In flight, the red rump is conspicuous. Adult females aren’t red; they are plain grayish-brown with thick, blurry streaks and an indistinctly marked face.
Behavior:
House Finches are gregarious birds that collect at feeders or perch high in nearby trees. When they’re not at feeders, they feed on the ground, on weed stalks, or in trees. They move fairly slowly and sit still as they shell seeds by crushing them with rapid bites. Flight is bouncy, like many finches.
Habitat:
House Finches frequent city parks, backyards, urban centers, farms, and forest edges across the continent. In the western U.S., you’ll also find House Finches in their native habitats of deserts, grassland, chaparral, and open woods.
Regional Differences:
House Finches, particularly males, can look very different from one to another. This is largely due to differences in their diet rather than regional differences. Even though all of eastern North America’s House Finches are descended from the same few birds released on Long Island (meaning they’re much more closely related to each other than they are to birds across the West), there aren’t any strong differences in size, shape, or color between the two regions.
Cool Facts:
The House Finch was originally a bird of the western United States and Mexico. In 1940 a small number of finches were turned loose on Long Island, New York, after failed attempts to sell them as cage birds (“Hollywood finches”). They quickly started breeding and spread across almost all of the eastern United States and southern Canada within the next 50 years.
House Finches were introduced to Oahu from San Francisco sometime before 1870. They had become abundant on all the major Hawaiian Islands by 1901.
The red of a male House Finch comes from pigments contained in its food during molt (birds can’t make bright red or yellow colors directly). So the more pigment in the food, the redder the male. This is why people sometimes see orange or yellowish male House Finches. Females prefer to mate with the reddest male they can find, perhaps raising the chances they get a capable mate who can do his part in feeding the nestlings.
House Finches feed their nestlings exclusively plant foods, a fairly rare occurrence in the bird world. Many birds that are vegetarians as adults still find animal foods to keep their fast-growing young supplied with protein.
The oldest known House Finch was a female, and at least 11 years, 7 months old when she was recaptured and rereleased during banding operations in New York in 1985, the same state where she had been banded in 1973.
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