Projecting risks posed to aviation safety by wildlife populations is often overlooked in airport
land-use planning. However, the growing dependency on civil aviation for global commerce …

Pioneer of systematic surveys of raptors, Derek was a good friend and mentor to many
people who have studied these birds. Through his work on pesticides and protected areas …

The spatial distribution of Red-tailed Hawks (Buteo jamaicensis) and Northern Harriers
(Circus cyaneus) overwintering in central Arkansas was studied in relation to perch …

Heterogeneous usage of space by individual animals or animal populations is partly due to
their preference for particular resources that are, themselves, heterogeneously distributed …

Habitat selection among raptors is apparent even to the casual observer. Com-ments on
species that inhabit “rocky, wooded ravines above the small streams”(Burns, 191 1) or …

Harriers are a charismatic group of birds of prey with a worldwide distribution that have long
fascinated bird watchers and scientists. Here for the first time the biology of the world's …

We compared the effects of habitat quality on dispersal, demography, dynamics, and fitness
of prairie vole (Microtus ochrogaster) and meadow vole (M. pennsylvanicus) populations by …

Seasonal changes in spatial distribution of search effort of birds that prey on small mammals
were studied in two structurally different coniferous forest habitats in the northern boreal …

Common kestrels (Falco tinnunculus) and long-eared owls (Asio otus) in intensively farmed
areas in Switzerland decreased markedly as a result of declining vole (Microtus spp.) …

The US Forest Service recently recommended managing forests to increase the abundance
of prey for Northern Goshawks (Accipiter gentilis) in the southwestern United States …