Far Eastern Curlew and Whimbrel prefer flying low: wind support and good visibility appear only secondary factors in determining migratory flight altitude

Batbayar Galtbalt, Amanda Lilleyman, Jonathan T Coleman, Chuyu Cheng, Zhijun Ma, Danny I Rogers, Bradley K Woodworth, Richard A Fuller, Stephen T Garnett & Marcel Klaassen
Background: In-flight conditions are hypothesized to influence the timing and success of long-distance migration. Wind assistance and thermal uplift are thought to reduce the energetic costs of flight, humidity, air pressure and temperature may affect the migrants’ water balance, and clouds may impede navigation. Recent advances in animal-borne long-distance tracking enable evaluating the importance of these factors in determining animals’ flight altitude. Methods: Here we determine the effects of wind, humidity, temperature, cloud cover, and...
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These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
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