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2012, 1, Studies in avian biology, ISBN 0520273133, Volume no. 43, xv, 223
Declining bird populations, especially those that breed in North American grasslands, have stimulated extensive research on factors that affect nest failure... 
Nests | Bird populations | Methodology | Ornithology | Birds | Technique | Monitoring | Biology, life sciences | Life Sciences | Science | Zoology | Behavior
Book
1938, Ext. circ., Volume no. 247, 64
Book
1983, BLM-Alaska technical report, Volume 8., v, 59 p. : ill. ; 28 cm.
Results of surveys conducted between 1979 and 1982 on the presence and abundance of nesting raptors on 16 rivers in southwestern Alaska. 
Birds of Prey | Red-tailed hawk | Alaska | Peregrine falcon
Book
1983, General technical report (Intermountain Forest and Range Experiment Station (Ogden, Utah)), Volume INT-GTR-140., 79
Book
The American Naturalist, ISSN 0003-0147, 09/2018, Volume 192, Issue 3, p. 389
Interspecific aggregations of prey may provide benefits by mitigating predation risk, but they can also create costs if they increase competition for resources... 
Trees | Nesting | Prey | Predators | Cavity nesting | Resource availability | Birds | Risk | Interspecific | Predation | Cost benefit analysis | Fitness
Journal Article
American Naturalist, ISSN 0003-0147, 09/2018, Volume 192, Issue 3, pp. 389 - 396
Journal Article
1969, Smithsonian contributions to zoology, Volume no. 9, iv, 48
Book
Frontiers in Ecology and the Environment, ISSN 1540-9295, 09/2011, Volume 9, Issue 7, pp. 377 - 382
In forests worldwide, tree-cavity supply can limit populations of the 10-40%% of bird and mammal species that require cavities for nesting or roosting.... 
Tree cavities | Trees | Bird nesting | Cockles | Woodpeckers | Forest conservation | Riparian forests | Forest management | Montane forests | RESEARCH COMMUNICATIONS | Mixed forests | NATURAL TREE HOLES | REQUIREMENTS | ENVIRONMENTAL SCIENCES | AUSTRALIA | CONSERVATION | ATLANTIC FOREST | AVAILABILITY | ECOLOGY | SELECTION | ECOSYSTEM | BIRDS | ABUNDANCE
Journal Article
Scientific Reports, ISSN 2045-2322, 01/2016, Volume 6, Issue 1, p. 19966
Evading detection by predators is crucial for survival. Camouflage is therefore a widespread adaptation, but despite substantial research effort our... 
EGG CRYPSIS | PREDATION | VISION | DISRUPTIVE COLORATION | IMAGES | MULTIDISCIPLINARY SCIENCES | Adaptation, Physiological | Predatory Behavior | Animals | Color | Birds | Visual Perception | Biological Mimicry | Plumage | Predators | Camouflage | Survival | Visual perception
Journal Article
1977, Agriculture handbook, Volume no. 511, 112 p. col. illus.
Book
1977, Agriculture handbook (United States. Dept. of Agriculture), 112
Book
The Journal of Wildlife Management, ISSN 0022-541X, 11/2018, Volume 82, Issue 8, pp. 1784 - 1793
Journal Article
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