White wagtail : Motacilla alba. Black-backed wagtail : Motacilla lugens /
Main Author: | Badyaev, A. V |
---|---|
Corporate Authors: | Academy of Natural Sciences of Philadelphia, American Ornithologists' Union |
Other Authors: | Gibson, Daniel D, Kessel, Brina |
Format: | Book |
Language: | English |
Published: |
Washington, D.C. : Philadelphia, PA :
American Ornithologists' Union ; The Academy of Natural Sciences,
1996
|
Series: | Birds of North America ;
v. 6, no. 236-237 |
Subjects: |
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