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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 ...
The European goldfinch or simply the goldfinch (Carduelis carduelis) is a small passerine bird in the finch family that is native to Europe, North Africa and western and central Asia. It has been introduced to other areas, including Australia, New Zealand, Uruguay and the United States.
The Eurasian siskin (Spinus spinus) is a small passerine bird in the finch family Fringillidae. It is also called the European siskin, common siskin or just siskin.Other (archaic) names include black-headed goldfinch, [2] barley bird and aberdevine. [3]
For many amphibians, an annual breeding cycle applies, typically regulated by ambient temperature, precipitation, availability of surface water and food supply.This breeding season is accentuated in temperate regions, [3] where prolonged aestivation or hibernation renders many amphibian species inactive for prolonged periods.
Spinus finches are gregarious and may breed and forage in small groups. [9] In the non-breeding season, these species generally disperse away from the breeding grounds and small flocks roam nomadically in search of food; these flocks may be of one species or mixed with other species in the genus.
Black-headed gulls, bar-tailed godwits and sanderlings foraging on a beach. A mixed-species feeding flock, also termed a mixed-species foraging flock, mixed hunting party or informally bird wave, is a flock of usually insectivorous birds of different species that join each other and move together while foraging. [1]
The lesser goldfinch (Spinus psaltria) is a small finch in the genus Spinus native to the Americas. As is the case for most species in the genus Spinus , lesser goldfinch males have a black forehead, which females lack.
The genus Carduelis was introduced by the French zoologist Mathurin Jacques Brisson in 1760 by tautonomy based on Carl Linnaeus's specific epithet for the European goldfinch Fringilla carduelis. [3] [4] The name carduelis is the Latin word for the European goldfinch. [5]