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There are two adult plumage variations known as the tan-striped and white-striped forms. On the white-striped form the crown is black with a white central stripe. The supercilium is white as well. The auriculars are gray with the upper edge forming a black eye line. [6] On the tan form, the crown is dark brown with a tan central stripe.
Her 1993 Ph.D. dissertation discussed the white-throated sparrow and how the different color morphs are kept at a stable and equal amount in each subsequent generation. [ 3 ] She continued her research at Indiana University as a post-doctoral fellow for Ellen Ketterson , which included an international trip to the United Kingdom for additional ...
The white-throated sparrow (Zonotrichia albicollis), a passerine bird of the American sparrow family Passerellidae, shows a clear dimorphism in both sexes throughout its large range. Their heads are either white-striped or tan-striped.
The female lays brown-blotched greenish-blue or greenish white eggs, which she incubates for 12–14 days. The male helps in feeding the chicks. Zonotrichia sparrows feed on the ground on seeds , fallen grain, insects and spiders .
Green-backed sparrow: Arremonops chloronotus (Salvin, 1861) 25 Black-striped sparrow: Arremonops conirostris (Bonaparte, 1850) 26 Tocuyo sparrow: Arremonops tocuyensis Todd, 1912: 27 Five-striped sparrow: Amphispizopsis quinquestriata (Sclater, PL & Salvin, 1868) 28 Black-throated sparrow: Amphispiza bilineata (Cassin, 1850) 29 Lark sparrow
The eastern bluebird is New York's state bird The following list of birds of New York included the 503 species and a species pair of wild birds documented in New York as of August 2022. Unless noted otherwise, the source is the Checklist of New York State Birds published by the New York State Avian Records Committee (NYSARC) of the New York State Ornithological Association. These species ...
It is a sister species with, and very closely related to, the white-crowned sparrow; studies of mitochondrial DNA show the two evolved into separate species very recently in geologic time. The white-throated sparrow is a slightly more distant relative. [4] Hybridization with both white-crowned and white-throated sparrows has been reported. [3]
Eastern towhee Lark sparrow Song sparrow. Order: Passeriformes Family: Passerellidae. Until 2017, these species were considered part of the family Emberizidae. Most of the species are known as sparrows, but these birds are not closely related to the Old World sparrows which are in the family Passeridae. Many of these have distinctive head patterns.