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Birds, Familiar: Song Sparrow, Life Histories of North American Birds, A.C. Bent (Site not responding. Last check: 2007-10-15) |
 | | The breeding song sparrow of eastern Canada and of the United States west to the Appalachians displays the typical preference of this species for moist ground and for a low, irregular, dense plant configuration considerably exposed to the sun. |
 | | The song sparrow's persistent songs, six to eight per minute at dawn in spring (Forbush, 1929), are, of course, associated with the maintenance of territory. |
 | | Song Sparrow songs are of two general types, those beginning with two to four (rarely one or five) similar and equally spaced phrases, and those beginning with four to twenty similar phrases that increase in tempo. |
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