Wednesday, June 26, 2013

Song Sparrow


A rich, russet-and-gray bird with bold streaks down its white chest, the Song Sparrow is one of the most familiar North American sparrows. Don’t let the bewildering variety of regional differences this bird shows across North America deter you: it’s one of the first species you should suspect if you see a streaky sparrow in an open, shrubby, or wet area. If it perches on a low shrub, leans back, and sings a stuttering, clattering song, so much the better.

The Song Sparrow is found throughout most of North America, but the birds of different areas can look surprisingly different. Song Sparrows of the Desert Southwest are pale, while those in the Pacific Northwest are dark and heavily streaked. Song Sparrows of Alaska’s Aleutian Islands chain are even darker, and they’re huge: one-third longer than the eastern birds, and weighing twice as much. Song Sparrows normally only lay one clutch of eggs per breeding season; however, in exceptional circumstances, such as loss of clutches from predation or an excess of resources, Song Sparrows have been recorded laying as many as seven clutches in a single breeding season and successfully rearing up to four clutches.
Song Sparrow Range Map

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