Status of the Northern Harrier in the Northcentral United States
Author : Helen M. Hands
Publisher :
Page : 30 pages
File Size : 18,45 MB
Release : 1989
Category : Bird populations
ISBN :
Author : Helen M. Hands
Publisher :
Page : 30 pages
File Size : 18,45 MB
Release : 1989
Category : Bird populations
ISBN :
Author :
Publisher :
Page : 414 pages
File Size : 19,26 MB
Release : 1992
Category : Bird populations
ISBN :
Author : Al Sandilands
Publisher : UBC Press
Page : 369 pages
File Size : 11,63 MB
Release : 2011-01-01
Category : Nature
ISBN : 0774859431
The vast literature on the history of birds is continually growing, but rarely has this information been compiled so that it is readily available in one reference work. Birds of Ontario is such a work, providing a comprehensive summary of the life history requirements of bird species in the province.
Author :
Publisher :
Page : 676 pages
File Size : 24,75 MB
Release : 1980
Category : Natural history
ISBN :
Author : Jennifer L. Sieracki
Publisher :
Page : 76 pages
File Size : 12,7 MB
Release : 2002
Category :
ISBN :
Author :
Publisher :
Page : 1038 pages
File Size : 30,49 MB
Release : 1991
Category : Birds
ISBN :
Author : David Lawrence Evans
Publisher :
Page : 76 pages
File Size : 45,37 MB
Release : 1982
Category : Birds of prey
ISBN :
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.
Author :
Publisher :
Page : 450 pages
File Size : 33,17 MB
Release : 1996
Category : Birds
ISBN :
Author : Jennifer L. Sieracki
Publisher :
Page : 76 pages
File Size : 13,68 MB
Release : 2002
Category :
ISBN :
Author : Paul Johnsgard
Publisher : Lulu.com
Page : 246 pages
File Size : 39,98 MB
Release : 2019-06-30
Category : Nature
ISBN : 1609621506
This book surveys Wyoming's mammal, bird, reptile, and amphibian faunas. In addition to introducing the state's geography, geology, climate, and major ecosystems, it provides 65 biological profiles of 72 mammal species, 195 profiles of 196 birds, 9 profiles of 12 reptiles, and 6 profiles of 9 amphibians. There are also species lists of Wyoming's 117 mammals, 445 birds, 22 reptiles, and 12 amphibians. Also included are descriptions of nearly 50 national and state properties, including parks, forests, preserves, and other public-access natural areas in Wyoming. The book includes a text of more than 150,000 words, nearly 700 references, a glossary of 115 biological terms, nearly 50 maps and line drawings by the author, and 33 color photographs by Thomas D. Mangelsen.