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White-throated sparrows breed in central Canada and New England. They nest either on the ground under shrubs or low in trees in deciduous or mixed forest areas and lay three to five brown-marked blue or green-white eggs. The tan and white morphs of white-throated sparrows use different reproductive strategies.
Elaina Marie Tuttle (November 9, 1963 – June 15, 2016) was an American behavioral geneticist and biology professor whose academic research focused on ornithology and study of the white-throated sparrow.
Adults have black and white stripes on their head, a gray face, brown streaked upper parts and a long tail. The wings are brown with bars and the underparts are gray. Their bill is pink or yellow. They are similar in appearance to the white-throated sparrow, but do not have the white throat markings or yellow lores. [3] Measurements: [4]
Jim McCormac visits Slate Run Metro Park to see and hear white-crowned sparrows, especially the young birds practicing their song. Young white-crowned sparrows perfecting melody still a delight to ...
These birds have brown backs streaked with black, and distinctive head markings. Their cup nests, built by the female, are of plant material lined with fine grasses and constructed on the ground, low in a tree or bush, or in a niche in a wall. The female lays brown-blotched greenish-blue or greenish white eggs, which she incubates for 12–14 days.
New World sparrows are a group of mainly New World passerine birds, forming the family Passerellidae. They are seed-eating birds with conical bills, brown or gray in color, and many species have distinctive head patterns.
The golden-crowned sparrow is one of five species in the genus Zonotrichia, a group of large American sparrows. [2] It has no subspecies. [3] 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.
Old World sparrows are small passerine birds. In general, sparrows tend to be small plump brownish or grayish birds with short tails and short powerful beaks. Sparrows are seed eaters, but they also consume small insects. One species has been recorded in Nevada. House sparrow, Passer domesticus (I)