We reviewed papers that compared intraspecific variation in territoriality vs. alternative forms
of spatial or behavioral organization with three goals:(1) to discover which ecological …

Both species and populations within species display variation in spacing patterns, and the
number of published reports documenting this variation is increasing rapidly. The potential …

Cowbirds of the genus Molothrus are brood parasites that lay their eggs in the nests of other
(host) species. Because many hosts raise cowbird young instead of their own, brood …

Brood—parasitic Brown—headed Cowbirds (Molothrus ater) in the eastern Sierra Nevada of
California, breed and feed in almost totally disjunct areas that reflect local optima for finding …

Plumage dichromatism in which males are more brightly colored than females is generally
thought to result from sexual selection for bright coloration in males. As predicted by the …

Brown-headed Cowbirds (Molothrus ater, hereafter" cowbirds") provide one of the best case
studies for demonstrating the need to consider multiple spatial scales in managing a species …

The expression of strong parental care is one of the reasons birds attract so much attention
from both laymen and biologists. Given this attention, it is not surprising that the few bird …

Abstract The Conservation Reserve Program (CRP) is a primary tool for restoring grassland
in the United States, in part as wildlife habitat, which has benefited declining grassland bird …

Abstract Brown-headed Cowbirds (Molothrus ater) are an obligate brood parasite and a
potential threat to some populations of migratory songbirds. I used radio-telemetry to study …

The social organization of a color-marked Brown-headed Cowbird (Molothrus ater)
population was investigated during the 1978-1980 breeding seasons. Several members of …