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The Costs
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Clearly migration has huge energetic costs, and recent studies have shown
that variation in individual and habitat quality can potentially compound these
costs. We hope to add to these studies by understanding how habitat selection
decisions across habitats that vary in food availability, competition, and
predation risk not only influence an individuals ability to refuel, but how
behavioral expression in these different habitats may either limit or add to the
costs of choosing poor habitats. By examining rates of refueling and stress
levels of birds in different habitats we can assess how habitat quality
influences individual quality. By coupling these studies with behavioral
observations we can begin to determine if birds can overcome these costs by
altering their behaviors, or if poor stopover site selection is further
compounded by poor behavioral expression |