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The purple finch is 12–16 cm (4.7–6.3 in) in overall length [7] and weighs a mean 23.3 g (0.82 oz), ranging from 19.8–28.4 g (0.7 - 1.0 oz). [8] It has a short forked brown tail and brown wings. Adult males are raspberry red on the head, breast, back and rump; their back is streaked. Adult females have light brown upperparts and white ...
One major difference between the sexes is that the male's chest is purple, while the female's is a lighter mauve. [9] Gouldian finches are about 125–140 mm (4.9–5.5 in) long. [10] Their heads may be red, black, or yellow. Formerly considered three different kinds of finches, it is now known that these are colour variants of one species that ...
Summer Resident Winter Introduced. canariensis spodiogenys. The Eurasian chaffinch, common chaffinch, or simply the chaffinch (Fringilla coelebs) is a common and widespread small passerine bird in the finch family. The male is brightly coloured with a blue-grey cap and rust-red underparts. The female is more subdued in colouring, but both sexes ...
The rosefinches are a genus, Carpodacus, of passerine birds in the finch family Fringillidae. Most are called "rosefinches" and as the word implies, have various shades of red in their plumage. The common rosefinch is frequently called the "rosefinch". The genus name is from the Ancient Greek terms karpos, "fruit", and dakno, "to bite".
Weight: 0.8-1.2 oz (24-34 g) Wingspan: 9.8-10.6 in (25-27 cm) Adults have a short forked brown tail and brown wings. They have a longer bill than the purple finch. Adult males are raspberry red on the head, breast, back and rump; their back and undertail are streaked. Adult females have light brown upperparts and light underparts with brown ...
The house finch is a moderate-sized finch, 12.5 to 15 cm (5 to 6 in) long, with a wingspan of 20 to 25 cm (8 to 10 in). Body mass can vary from 16 to 27 g (9⁄16 to 15⁄16 oz), with an average weight of 21 g (3⁄4 oz).
Sexual selection in birds. Male greater frigatebird displaying. Sexual selection in birds concerns how birds have evolved a variety of mating behaviors, with the peacock tail being perhaps the most famous example of sexual selection and the Fisherian runaway. Commonly occurring sexual dimorphisms such as size and color differences are ...
The American goldfinch (Spinus tristis) 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 Canada–United States border to Mexico during the winter. The only finch in its subfamily to undergo a complete molt, the American ...