Evaluation of sex differences in the stopover behavior and postdeparture movements of wood-warblers
2018
Sex-specific behaviors underlying avian protandry, where males arrive at breeding areas earlier than females, are still poorly understood for most species. We tested for sex-specific stopover behavior of Neotropical-Nearctic
wood-warblers(Parulidae) at a stopover site on Lake
Erie, Ontario, using radio
telemetryand analysis of
blood plasma. The sex differences we found were subtle and related to diel activity, and so likely do not contribute to protandry in a consistent way.
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