Status Reports on Twelve Raptors
Status Reports on Twelve Raptors

Author: David Lawrence Evans

Publisher:

Published: 1982

Total Pages: 76

ISBN-13:

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Depletion of fisheries due to acid rain may pose a future threat to bald eagle and osprey populations in some regions. Loss of essential habitat has affected declines in the caracara and western burrowing owl and the disappearance of the norther aplomado falcon from the southern United States. Most populations of the ferruginous hawk, marsh hawk, and prairie falcon appear stable; habitat loss is the most critical factor in population changes.

A Bibliography of Alberta Ornithology
A Bibliography of Alberta Ornithology

Author: D. M. Ealey

Publisher:

Published: 1991

Total Pages: 764

ISBN-13:

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Bibliography lists 7444 references of unpublished and published reports, articles and books relating to the ornithology of Alberta, up to and including 1989. Includes all those listed in the first edition published as Provincial Museum of Alberta Natural History occasional paper no. 3 in 1981, with corrections, plus additional information as keywords. Indices for authors, subject, species and geographical location follow the main compilation.

Birds of British Columbia, Volume 2
Birds of British Columbia, Volume 2

Author: Wayne Campbell

Publisher: UBC Press

Published: 2007-10-01

Total Pages: 645

ISBN-13: 0774844361

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This volume completes the nonpasserine species and contains accounts for the diurnal birds of prey through woodpeckers.