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Showing 1 to 1 of 1 for “"Breeding costs"”.
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The cost of breeding in the winter versus the summer in an opportunistic, northtemperate songbird, the red crossbill (Loxia curvirostra)
… we present heart rate data of free-living, non-breeding and breeding red crossbills in the summer and winter. We discuss these variables in the context of red crossbills’ unique opportunistic and nomadic annual schedules and the highly seasonal conditions of our field site in Grand Teton …