Nesting biology of Dickcissels and Henslow's sparrows in Southwestern Missouri prairie fragments

According to data from the North American Breeding Bird Survey, populations of Dickcissel and Henslow's Sparrow have declined severely during the last 30 years. The reasons for their population declines seem to differ.

Bibliographische Detailangaben

Veröffentlicht in:	The Wilson journal of ornithology 1999-12, Vol.111 (4), p.515
1. Verfasser:	Winter, Maiken
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal populations Birds Nesting Ornithology Population decline
Online-Zugang:	Volltext
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