Natal dispersal is an important driver of population and colonization dynamics, yet factors that
affect timing and distance of post-fledging movements are poorly understood. We studied post-fledging movements
of 34 (12 male and 22 female) juvenile Burrowing Owls (Athene cunicularia) between June 2002 and April
2003, in a nonmigratory population...
Reproductive strategies of birds are shaped by patterns of food supply, yet empirical evidence of the consequences and mechanisms of food limitation on reproductive performance is inconsistent, probably due to variable responses from species of differing life-history strategies. We tested the hypothesis that food supplementation would increase reproductive rates of...
The acorn woodpecker is among the most common primary cavity nesting bird of the Oregon white oak woodlands. In most of
their range, acorn woodpeckers are dependent on granaries for acorn storage, yet little is known about their selection of granary
sites. We compared habitat characteristics within 12 m of...