Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Gordon S. Court"'
Publikováno v:
Avian Conservation and Ecology, Vol 1, Iss 3, p 1 (2006)
Forestry and other activities are increasing in the boreal mixedwood of Alberta, with a concomitant decrease in older forest. The Barred Owl (Strix varia) is an old-growth indicator species in some jurisdictions in North America. Hence, we radio-tagg
Externí odkaz:
https://doaj.org/article/d037f3959f184b28b6a9344d7aed03d0
Publikováno v:
The Canadian Field-Naturalist. 134:205-209
In winter, Gyrfalcon (Falco rusticolus) and Prairie Falcon (Falco mexicanus) frequent a 96-year-old grain terminal, in Edmonton, Alberta, hunting Rock Pigeon (Columba livia). This phenomenon was reviewed shortly after it was first noticed by others i
Autor:
Gordon S. Court
Publikováno v:
Journal of Raptor Research. 51:495-497
Publikováno v:
The Journal of Wildlife Management. 77:1342-1352
Raptor electrocution mortality on power lines has been well documented over the past several decades, yet knowledge gaps, particularly regarding electrocution rates and estimates of losses, are still prevalent in the literature. Mortality estimates t
Publikováno v:
ARCTIC. 63
The historical decline of the peregrine falcon ( Falco peregrinus ) in North America was attributed mainly to reproductive failure associated with persistent organochlorine pollutants, in particular DD T (dichloro-diphenyl-trichloroethane). It is gen
Publikováno v:
Avian Conservation and Ecology, Vol 1, Iss 3, p 1 (2006)
ResearcherID
ResearcherID
Forestry and other activities are increasing in the boreal mixedwood of Alberta, with a concomitant decrease in older forest. The Barred Owl (Strix varia) is an old-growth indicator species in some jurisdictions in North America. Hence, we radio-tagg
Publikováno v:
The Canadian Field-Naturalist. 128:145
In three long-term studies of Ferruginous Hawks (Buteo regalis), Rough-legged Hawks (Buteo lagopus), and Great Horned Owls (Bubo virginianus), we observed rare but regular occurrences of superabundant prey at nests where nestlings were hungry, emacia
Autor:
Gordon S. Court, Robin M. Johnstone, Lynn W. Oliphant, James D. MacNeil, D.Mark Bradley, Adrian C. E. Fesser
Publikováno v:
Environmental pollution (Barking, Essex : 1987). 93(2)
Levels of eggshell thinning, and organochlorine residues in egg contents, blood plasma of adults and juveniles, tissue samples, and prey species were determined for a population of migratory Peregrine Falcons ( Falco peregrinus tundrius ) breeding in
Publikováno v:
ARCTIC. 41
A dense, productive population of peregrine falcons ( Falco peregrinus ) was studied for five years on a 450 sq km study area located along the northwest coast of Hudson Bay. The mean internest distance of 3.3 km represents the highest nesting densit