Body mass dynamics of migratory nightjars are explained by individual turnover and fueling

''Body mass Red-necked Nightjars'' dataset includes measurements from a long term study (2011-2019, N = 882 measurements) taken in a population of Red-necked nightjars (<i>Caprimulgus ruficollis</i>) in Doñana National Park, located in the southwest of the Iberian Peninsula. The weight and the stomach (gizzard) volume were measured from the captured individuals. ''Capture-recapture data for calculation of FDR'' datased includes measurements from this same long term study (2011-2019, N=166 measurements) of Red-necked Nightjars. In this dataset, only individuals recaptured after 24.00 pm were included and body mass were corrected for stomach (gizzard) size. Further details on the field procedures are provided in the article.<br>

红颈夜鹰体重数据集（Body mass Red-necked Nightjars dataset）包含2011-2019年长期研究的测量数据，样本量N=882，采样种群为位于伊比利亚半岛西南部的多尼亚纳国家公园（Doñana National Park）内的红颈夜鹰（*Caprimulgus ruficollis*）。研究对捕获个体的体重及砂囊（胃）容积进行了测定。
用于假发现率（False Discovery Rate, FDR）计算的重捕数据集（Capture-recapture data for calculation of FDR dataset）同样来自上述2011-2019年的长期研究，样本量N=166。该数据集仅纳入当日24时后被重捕的个体，且已根据砂囊（胃）的大小对体重进行校正。野外操作的详细细节已在相关研究论文中予以说明。