digital painting of three anerican goldfinch birds, two males and one female.
Line drawing painted with photoshop.

American Goldfinch
The American Goldfinch (Carduelis tristis), also known as the Eastern Goldfinch and Wild Canary, is a small North American bird in the finch family. It is migratory, ranging from mid-Alberta to North Carolina during the breeding season, and from just south of the Canadian border to Mexico during the winter.

The only finch in its subfamily which undergoes a complete molt, the American Goldfinch displays sexual dimorphism in its coloration; the male is a vibrant yellow in the summer and an olive color during the winter months, while the female is a dull yellow-brown shade which brightens only slightly during the summer. The male displays brightly colored plumage during the breeding season to attract a mate.

The American Goldfinch is a granivore and adapted for the consumption of seedheads, with a conical beak to remove the seeds and agile feet to grip the stems of seedheads while feeding. It is a social bird, and will gather in large flocks while feeding and migrating. It may behave territorially during nest construction, but this aggression is short-lived. Its breeding season is tied to the peak of food supply, beginning in late July, which is relatively late in the year for a finch. This species is generally monogamous, and produces one brood each year.

Human activity has generally benefited the American Goldfinch. It is often found in residential areas, attracted to bird feeders which increase its survival rate in these areas. Deforestation also creates open meadow areas which are its preferred habitat.

The American Goldfinch is a small finch, 11–13 centimeters (4.3–5.1 in) long, with a wingspan of 19–22 centimeters (7.5–8.7 in). It weighs between 11–20 grams (0.39–0.71 oz).11 The beak is small, conical, and pink for most of the year, but turns bright orange with the spring molt in both sexes. The shape and size of the beak aid in the extraction of seeds from the seed heads of thistles, sunflowers, and other plants.

The American Goldfinch undergoes a molt in the spring and autumn. It is the only cardueline finch to undergo a molt twice a year. During the winter molt it sheds all its feathers; in the spring, it sheds all but the wing and tail feathers, which are dark brown in the female and black in the male. The markings on these feathers remain through each molt, with bars on the wings and white under and at the edges of the short, notched tail. The sexual dimorphism displayed in plumage coloration is especially pronounced after the spring molt, when the bright color of the male’s summer plumage is needed to attract a mate.

Once the spring molt is complete, the body of the male is a brilliant lemon yellow, a color produced by carotenoid pigments from plant materials in its diet, with a striking jet black cap and white rump that is visible during fligh. The female is mostly brown, lighter on the underside with a yellow bib. After the autumn molt, the bright summer feathers are replaced by duller plumage, becoming buff below and olive-brown above, with a pale yellow face and bib. The autumn plumage is almost identical in both sexes, but the male has yellow shoulder patches. In some winter ranges, the goldfinches lose all traces of yellow, becoming a predominantly medium tan-gray color with an olive tinge evident only on close viewing.

The immature American Goldfinch has a dull brown back, and the underside is pale yellow. The shoulders and tail are dull black with buff-colored, rather than white, markings on wings and rump. This coloration is the same in both genders.

The song of the American Goldfinch is a series of musical warbles and twitters, often with a long note. A tsee-tsi-tsi-tsit call is often given in flight; it may also be described as per-chic-o-ree. While the female incubates the eggs, she calls to her returning mate with a soft continuous teeteeteeteete sound. The young begin to use a call of chick-kee or chick-wee shortly before fledging, which they use until they have left the nest entirely. There are two defense calls made by adults during nesting; a sweeet call made to rally other goldfinches to the nest and distract predators, and a bearbee used to signal to the nestlings to quiet them and get them to crouch down in the nest to become less conspicuous.

The American Goldfinch prefers open country where weeds thrive, such as fields, meadows, flood plains, as well as roadsides, orchards, and gardens. It may also be found in open deciduous and riparian woodlands and areas of secondary growth. This habitat preference continues during the spring and autumn migrations.

The summer breeding range stretches across North America from coast to coast. It is bounded on the north by Saskatchewan and stretches south across North America to North Carolina on the east coast, and northern California on the west coast. The American Goldfinch is a short-distance migrant, moving south in response to colder weather and lessened food supply. The migration is completed in compact flocks, which travel in an erratic, wavelike flight pattern.

Its winter range includes southern Canada and stretches south through the United States to parts of Mexico. In winter, in the northern part of its range, the finch may move nearer to feeders if they are available. In southern ranges, during winter, they remain in areas similar to the fields and flood plains where they live during the summer months.

Attempts were made to introduce the American Goldfinch into Bermuda in the 19th century, and Tahiti in 1938, but the species failed to become established.The American Goldfinch is a diurnal feeder. It is mainly granivorous, but will occasionally eat insects, which are also fed to its young to provide protein. Its diet consists of the seeds from a wide variety of annual plants, often those of weeds grasses and trees, such as thistle, teasel, dandelion, ragweed, mullein, cosmos, goatsbeard, sunflower, and alder. However, it also consumes tree buds, maple sap, and berries. It will eat at bird feeders provided by humans, particularly in the winter months, preferring Niger seed (commonly and erroneously called thistle seed).

Unlike some finch species, the American Goldfinch uses its feet extensively in feeding. It frequently hangs from seedheads while feeding in order to reach the seeds more easily. In the spring, the American Goldfinch feeds on the catkins hanging from birches and alders by pulling one up with its beak and using its toes to hold the catkin still against the branch. This dexterity enables it to take advantage of food sources relatively inaccessible to potential competitors, increasing its chances of survival.

ce a male has found a mate, he selects a territory, marking the boundaries by warbling as he flies from perch to perch. After circling the perimeter, he performs two flight displays, first repeating a low, flat flight, then flying in an exaggerated version of normal flight, tucking his wings close to his body, plummeting earthwards and catching himself as he spreads his wings to glide upward in a series of loops. Two or three pairs may group their territories together in a loose colony, perhaps to aid in defense against predators.

The nest is built in late summer by the female in the branches of a deciduous shrub or tree at a height of up to 10 meters (33 ft). The nest-building lasts approximately six days, during which time the female works in 10–40 minute increments. The male frequently flies with the female as she collects nesting materials, and though he may carry some materials back to the nest, he leaves its construction to the female. The outer shell of the nest is built of bark, weeds, vines, and grass.20 The inside diameter of the finished nest is about 6.5 centimeters (2.6 in). The rim is reinforced with bark bound by spiderwebs and caterpillar silk, and the cup is lined with plant down from milkweed, thistle, or cattail. The nest is so tightly woven that it can hold water, and it is possible for nestlings to drown following a rainstorm if the parents do not cover the nest.

American Goldfinches lay four to six bluish-white eggs, which are oval in shape and about 16 by 12 millimeters (0.63 × 0.47 in), roughly the size of a peanut. It is thought that they are laid during the night. The eggs are incubated by the female alone, though the male brings her food as she nests, and most mating pairs raise only one brood each year.

The chicks hatch 12–14 days after incubation begins. Like all passerines, the chicks are altricial; they are born naked, with reddish bodies, pale grey down, and closed eyes. The mother bird feeds her young regurgitated seeds and insects as they grow. The hatchlings develop quickly, opening their eyes after three days, and completing the growth of olive-brown juvenile plumage after 11–15 days, at which time they begin to practice short flights close to the nest. For up to three weeks after fledging, they are still fed by the male, who locates them by listening for their fledging call. The chicks stop giving this call when they become entirely independent. American Goldfinches are occasionally victims of brood parasites, particularly Brown-headed Cowbirds. One study found that 9% of nests had Brown-headed Cowbird eggs in them American Goldfinches make very poor hosts for brood parasites, with studies showing low hatching rates of Brown-headed Cowbird eggs and no fledging success. This is despite the fact that the American Goldfinch has no known behavioral adaptations against brood parasites. It is thought that the inability of Brown-headed Cowbird chicks to survive is due to a failure to get enough nutrition; the seed-rich diet of American Goldfinch chicks varies from the usual insect-rich diet of other hosts.
From wikipedia, the free encyclopedia.

Comments

  • Lois  Bryan
    Lois Bryanabout 3 years ago

    Walter this is so very beautiful!!!!!!! I adore the goldfinch … and your lovely painting is perfect!!!!

  • Thank you Very much Lois. I am still learniing to paint with photoshop. I am also trying to leant to paint with corel painter.

    – Walter Colvin

  • JRGarland
    JRGarlandabout 3 years ago

    You outdid yourself with this one. Awesome creation!!

  • Thank you My friend. I am still learning to paint with photoshop. Having a little trouble adjusting the brushes to ger the effect of real brushes. But I am learning.

    – Walter Colvin

  • Lois  Bryan
    Lois Bryanabout 3 years ago

    I have Corel as well .. and have had it for a while … still haven’t really cracked it!!!!! But I know it’s doable (have seen some amazing artwork created in it) and i have every confidence you’ll figure it out!!!!!

  • Thank you for the support Lois. It is very much appreciated.

    – Walter Colvin

  • Anita Inverarity
    Anita Inverarityabout 3 years ago

    Beautiful piece Walter xx

  • Thank you very much Anita.

    – Walter Colvin

  • Steven  Agius
    Steven Agiusabout 3 years ago

    Excellent work Walter.

  • Thank you my friend.

    – Walter Colvin

  • Bootiewootsy
    Bootiewootsyabout 3 years ago

    Another winner, Walter.. Stunning work

  • Thank you very much Carol.

    – Walter Colvin

  • Keith Reesor
    Keith Reesorabout 3 years ago

    Marvelous!! :)

  • Thank you my friend.

    – Walter Colvin

  • TeresaB
    TeresaBabout 3 years ago

    January 21, 2012

  • Thank you very much for the honor Teresa. It is very much appreciated.

    – Walter Colvin

  • Mary Sedici
    Mary Sediciabout 3 years ago


    JANUARY 23rd,

    See your work in the Permanents Featured Gallery
    ►Please participate in the ongoing Challenges
    Mary

  • Thank you very much for the honor of being featured in this group of great artist Mary.

    – Walter Colvin

  • yvil1
    yvil1about 3 years ago

    Beautiful work! :)

  • Thank you very much Yvonne. your comments are very much appreciated.

    – Walter Colvin

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