I studied spring food habits, focusing on cambium-feeding, of black bears (Ui-gus americanus) in the Central Coast Ranges of Oregon (1987-90) by comparing an area with high levels of timber damage caused by bears (north ...

The habitat relationships of Swainson's hawks in northern California were studied at several levels of resolution: 1) distribution of hawk populations among three adjacent geographic areas, 2) density of hawk territor ...

Habitat availability and use by an urban population of opossums were studied with radio telemetry in Corvallis, Oregon in 1981 and 1982. For non-den observations, residential neighborhood types were used about in the ...

In the spring and summer of 1973 and 1974 a study of habitat utilization by pileated woodpeckers (DryocoPus pileatus picinus) was conducted on the Starkey Experimental Forest and Range in the Blue Mountains of northea ...

Pacific Coast band-tailed pigeons (Columba fasciata) have declined markedly during the past several decades. Despite implementation of increasingly restrictive hunting regulations, populations have shown minimal signs ...

Rates of defecation of black-tailed deer in the Tillamook Burn of western Oregon were estimated using counts of groups of fecal pellets in 1959 and 1960. A 340-acre enclosure was divided into eight range types on the ba ...