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 House
Finch
Male House Finches display extreme color
variation, ranging from pale yellow to bright red. The
depth of red coloring in each male depends on the amount
of carotenoid pigments in the birds food sources
during the molting period. Studies show that females
prefer the brightest and reddest males; presumably the
hue and intensity of color are indications of the male's
fitness.
The House Finch is an abundant bird often associated
closely with human habitation. Although the native
western population occurs in a wide variety of habitats
ranging from undisturbed desert to chaparral and open
coniferous forests to cities, range expansions have been
made possible by man's changes to the environment. The
House Finch prefers edge habitat, and even in desert
areas, these finches require a source of water, as well
as structures for perching and nesting. These structures
may be small conifers or buildings. During the past
hundred years, western populations have expanded north
into British Columbia and into central and eastern
Montana, as suitable habitat was created by man. Over
most of its range, House Finch abundance is closely
correlated with the size of the local human population.
Eastern populations descend from the 1940 release of
illegally caged birds, which were probably trapped in the
Los Angeles area, by pet shop owners on Long Island, New
York. The eastern population experienced exponential
growth because of the species' high fecundity and the
long-distance dispersal of juveniles. From Long Island,
House Finches spread north into southern Ontario, south
to northern Florida and the Gulf of Mexico, and west into
the Great Plains, where they are now meeting the western
population. Interestingly, the introduced eastern
populations have developed migratory behavior that is
absent in western House Finches. Birds from the Northeast
and Great Lakes area now migrate south in winter.
House Finch
Range Map
The species was introduced on the Hawaiian Islands
sometime before 1870. There, this finch is known as the
papaya bird, which stems from the birds preference
for that food. Hawaiian males lack the red color of
mainland birds and, at one time, were thought to be a
separate species; however, their lack of red color is due
to diet.
Everywhere, the House Finch is a gregarious bird, forming
loose flocks in breeding season, and flocks that may
number into the hundreds in the winter. They roost in
close proximity to each other, sometimes touching. These
vegetarian birds are strongly attracted to feeders, where
they prefer small sunflower seeds. At other times of the
year they feed on buds, seeds, and fruitsthey feed
on so much fruit that in parts of the West, they may be
considered pests.
Description: House Finches are slim,
sparrow-sized birds (5.0 to 5.75 inches in length) with
short, stubby conical bills and square-tipped tails.
Males typically have a "headband" of bright red
on the forehead and supercilium. Chin, throat, and upper
breast are red as is the rump. The top and back of the
head and back are brown with faint darker brown streaks.
Wings and tail are also brown. Lower breast and undertail
area are white with broad brown streaks. Because of color
variabilities, the pattern of red coloring (light red,
orange, or yellow in some birds) rather than the actual
hue distinguishes House Finch males from their similar
cousins, the Purple Finch (Carpodacus purpureus)
and Cassin's Finch (C. cassinii). Purple and
Cassin's finches lack the strong facial pattern of a
House Finch, which is created by the sharp separation of
the "headband" from the throat by a brown cheek
patch; the backs of Purple and Cassin's Finches are
tinged reddish with brown streaks. The reddish color of
these species' throat and breast diffuses into a largely
unstreaked white lower breast and belly, whereas the male
House Finch's red throat and upper breast are more
sharply separated from the white lower breast and belly,
both of which are strongly streaked with brown.
Females and immature male House Finches are faintly
streaked brown from forehead to rump. Wings and tail are
brown. The chin, throat, and breast are uniformly
streaked brown on white. Compared to the Purple and
Cassin's females, the House Finch's streaking is less
defined, and the face is unpatterned. Like Cassin's, but
unlike Purple Finches, House Finches have streaked
undertail coverts. Both male and female House Finches are
slimmer, shorter billed, and have more square-tipped,
less-notched tails than the other two species.
Attracting
Finches
Visit Shaw Creek
Bird Supply to see our selection of House Finch
Feeders.
Copyright © 2003 Shaw Creek
Bird Supply
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