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Author: Hugo W. Nilson Publisher: ISBN: Category : Agricultural pests Languages : en Pages : 64
Book Description
The white-necked raven (Corvus cryptoleucus), a close relative of the common crow, is indigenous to southwestern United States. Because in parts of its range it has gained the same ill repute as acquired by the crow and magpie in their respective ranges, a 5-year detailed study of its activities and food habits was made, during which many field data were gathered, and the contents of 827 stomachs were analyzed.
Author: Hugo W. Nilson Publisher: ISBN: Category : Agricultural pests Languages : en Pages : 64
Book Description
The white-necked raven (Corvus cryptoleucus), a close relative of the common crow, is indigenous to southwestern United States. Because in parts of its range it has gained the same ill repute as acquired by the crow and magpie in their respective ranges, a 5-year detailed study of its activities and food habits was made, during which many field data were gathered, and the contents of 827 stomachs were analyzed.
Author: Publisher: ISBN: Category : Wildlife conservation Languages : en Pages : 174
Book Description
A bibliography comprising annotated citations of 2037 scientific and technical publications from ten series issued by the U.S. Fish and Wildlife Service. Includes a six-page introduction containing a history of the Service and a description of the research and development series.
Author: Alexander Campbell Martin Publisher: Courier Corporation ISBN: 0486207935 Category : Nature Languages : en Pages : 514
Book Description
'Prepared under the direction of the United States Fish and Wildlife Service, Department of the Interior, at the Patuxent Research Refuge, Laurel, Maryland.'
Author: Hugo W. Nilson
Author: Hugo W. Nilson
Author: U.S. Fish and Wildlife Service
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Author: United States. Bureau of Sport Fisheries and Wildlife
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Author: 
Author: 
Author: United States. Wildlife Research Laboratory, Denver
Author: Alexander Campbell Martin
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