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Song sparrows' nests are parasitized by the brown-headed cowbird. The cowbirds' eggs closely resemble song sparrows' eggs, although the cowbirds' eggs are slightly larger. Song sparrows recognize cowbirds as a threat and attack the cowbirds when they are near the nest. There is some evidence that this behavior is learned rather than instinctual ...
Reviews and a field guide summarize the limited information available on Bachman's sparrow migration. [6] [7] [9] [10] Bachman's sparrows in the southern portion of their range are resident, while those in Missouri, Arkansas, eastern Oklahoma, Tennessee, Virginia, parts of North Carolina, and extreme northern Mississippi and Alabama have been thought to migrate south during winter. [7]
The genus, commonly referred to as "song sparrows," currently contains three species, all of which are native to North America. Members of Melospiza are medium-sized sparrows with long tails, which are pumped in flight and held moderately high on perching. They are not seen in flocks, but as a few individuals or solitary.
Northern birds migrate to the southern United States. There has been one record of this species as a vagrant to western Europe: a single bird in Great Britain in 1966. [3] The song is a short drink your teeeeea lasting around one second, starting with a sharp call ("drink!") and ending with a short trill "teeeeea". The name "towhee" is ...
The chipping sparrow lays a clutch of two to seven pale blue to white eggs with black, brown, or purple markings. They are about 17 by 12 millimetres (0.67 by 0.47 in), and incubated by the female for 10 to 15 days. [7] The chipping sparrow is often brood parasitized by brown-headed cowbirds, usually resulting in the nest being abandoned. [6]
The song of the swamp sparrow is a monotone trill, slower than that of the chipping sparrow. A male can have a repertoire of several different trills. The common call note is a loud chip reminiscent of a phoebe.
The fox sparrow (Passerella iliaca) is a large New World sparrow. It is the only member of the genus Passerella , although some authors split the species into four (see below). Taxonomy
The saltmarsh sparrow (Ammospiza caudacuta) is a small New World sparrow found in salt marshes along the Atlantic coast of the United States. At one time, this bird and the Nelson's sparrow (Ammospiza nelsoni) were thought to be a single species, the sharp-tailed sparrow. Because of this, the species was briefly known as the "saltmarsh sharp ...