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AMGOAmerican Goldfinch
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No significant differences in bird abundance were observed during Trial 2 among the three large-seed varieties with three species being observed >30 times: Rose-breasted Grosbeak (Pheucticus ludovicianus, N = 61), House Finch (N = 48), and American Goldfinch (N = 197).
House Finch (N = 1031), American Goldfinch (N = 536), and House Sparrow (N = 155) had their greatest abundance at small seeds, and had significantly greater abundances at the small 51.
Species that sit at a feeder and eat, such as House Finch, American Goldfinch, and House Sparrow selected smaller seeds at equivalent rates to larger seeds, even if larger seeds had higher oil contents.
Perching orientation affects number of feeding attempts and seed consumption by the American Goldfinch (Carduelis tristis).
Seasonal acclimatization in the American Goldfinch revisited: to what extent do metabolic rates vary seasonally?
Among resident passerines, Tufted Titmouse, Northern Cardinal, American Goldfinch, Brown-headed Cowbird, Eastern Towhee, Carolina Chickadee, White-breasted Nuthatch, Carolina Wren, and American Robin were abundant at all three sites.
These included Northern Cardinal, American Goldfinch, Tufted Titmouse, Eastern Towhee, Blue-gray Gnatcatcher, Common Grackle, and Black-capped Chickadee.
Species Common Name Agelaius phoeniceus Red-winged Blackbird Baeolophus bicolor Tufted Titmouse Cardinalis cardinalis Northern Cardinal Carduelis tristis American Goldfinch Corvus brachyrhynchos American Crow Cyanocitta cristata Blue Jay Mimus polyglottos Northern Mockingbird Molothrus ater Brown-headed Cowbird Pipilo erythrophthalmus Eastern Towhee Poecile atricapilla Black-capped Chickadee Poecile carolinensis Carolina Chickadee Quiscalus quiscula Common Grackle Sialia sialis Eastern Bluebird Sitta carolinensis White-breasted Nuthatch Sturnus vulgaris European Starling Thryothorus ludovicianus Carolina Wren Turdus migratorius American Robin Species Bluebell Bohm Sweet William Agelaius phoeniceus 0.
American Goldfinch (Carduelis tristis): Muted drab-green color in fall and winter, it turns bright yellow in summer.
Niger seed, (commonly called thistle) is a tiny, thin black seed that is favored by the slender billed finches, like American goldfinch and common redpolls and pine siskins.
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