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The effect of rainfall on the metabolism of birds is poorly understood. We measured the metabolism as rate of oxygen consumption (V˙O 2 ) of four male and four female American kestrels (Falco sparverius) using open-circuit respirometry. We measured V˙O 2 during the spring at ambient temperatures (T a ) of 5, 10, 15, and 25 °C in air without rainfall and with simulated rainfall...
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