Download or read book North American Breeding Bird Survey Results and Analysis 1966 1998 written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeding Bird Survey 1966 written by Chandler S. Robbins and published by . This book was released on 1969 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Breeding Bird Survey 1966 written by Chandler S. Robbins and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Breeding Bird Survey 1966 with List of References written by and published by . This book was released on 1967 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeding Bird Survey 1966 with List of References written by and published by . This book was released on 1967 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeding Bird Survey written by and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Breeding Bird Survey 1967 and 1968 written by Chandler S. Robbins and published by . This book was released on 1969 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book North American Breeding Bird Survey written by Sam Droege and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Canadian Breeding Bird Survey 1966 1994 written by C. M. Downes and published by Canadian Wildlife Service. This book was released on 1996 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Breeding Bird Survey in Canada 1966 1983 written by B. T. Collins and published by . This book was released on 1989 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Results from the Breeding Bird Survey are used to study changes in population of birds in Canada over the period 1966 to 1983. Although some patterns are apparent, such as a decline of many grassland and wetland species in the Canadian prairies, the results are generally more complex. There is a mixture of increases and decreases in population that varies by species and regions"--Summary.
Download or read book Etude Collective Des Populations D oiseaux Nicheurs Du Canada 1966 1969 written by Anthony J. Erskine and published by . This book was released on 1970 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Co operative Breeding Bird Survey in Canada 1966 69 written by and published by . This book was released on 1970 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the first four years of a co-operative attempt to detect and measure year-to-year changes in numbers of birds, chiefly songbirds, across Canada. Includes description of data collection and year-to-year comparison methods used. Results presented includes number and coverage of bird survey routes, mean number per route of the 20 species recorded in the greatest numbers, population indices 1966-69 for eight major species, changes in bird population indices for comparable survey routes, and annual indices of bird populations in the Maritimes.
Download or read book North American Breeding Bird Survey written by Sam Droege and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Resource Publication written by and published by . This book was released on 1982 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Breeding Bird Survey 1967 and 1968 written by Chandler S. Robbins and published by . This book was released on 1969 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maps show the breeding range and comparative abundance of selected species.
Download or read book The First Ten Years of the Co operative Breeding Bird Survey in Canada written by Anthony J. Erskine and published by Fisheries and Environment Canada ; Ottawa : Available from, Printing and Publishing, Supply and Services Canada. This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1966-75 activities of the Breeding Bird Survey to detect and measure year-to-year and long-term changes in population of birds, particularly the smaller land birds.
Download or read book Resource Publication United States Bureau of Sport Fisheries and Wildlife written by and published by . This book was released on 1965 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
