North American Breeding Bird Survey, Results and Analysis, 1966-1998 PDF Download
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Author:
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages :
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Book Description
Author: Chandler S. Robbins
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 43
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Book Description
Author: Chandler S. Robbins
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 52
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Book Description
Routes are selected at random on the basis of one-degree blocks of latitude and longitude. Each 24.5 mile route, with 3 minute stopes spaced one-half mile apart, is driven by automobile. All birds heard or seen at the stops are recorded on special forms and the data are then transferred to machine punch cards.
Author: Chandler S. Robbins
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 52
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Book Description
Routes are selected at random on the basis of one-degree blocks of latitude and longitude. Each 24.5 mile route, with 3 minute stopes spaced one-half mile apart, is driven by automobile. All birds heard or seen at the stops are recorded on special forms and the data are then transferred to machine punch cards.
![Breeding Bird Survey, 1966 [with List of References] PDF](https://books.google.com/books/content/images/frontcover/OJ2UnQAACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category : Bird surveys
Languages : en
Pages : 43
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Book Description
![Breeding Bird Survey, 1966 [with List of References] PDF](https://books.google.com/books/content/images/frontcover/S_sbzQEACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category : Bird surveys
Languages : en
Pages : 43
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Chandler S. Robbins
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 116
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Book Description
Author: Sam Droege
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 24
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Book Description
Summarizes population changes of 222 bird species reported on >50 permanent breeding bird survey routes during 1987 and 1988. Compares with annual trends between 1966-87. Includes maps and statistical tables.
Author: C. M. Downes
Publisher: Canadian Wildlife Service
ISBN: 9780662246244
Category : Bird populations
Languages : en
Pages : 36
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Book Description
