Paired t-tests comparing the route length and migration speed of 36 Black Kites equipped with Argos vs GPS satellite-tracking devices for each of four data subsampling approaches (details in methods).

an = mean number of locations/tag on which the estimate is based; min = minimum number of locations/tag on which the estimate is based; max = maximum number of locations/tag on which the estimate is based.

an 表示该估计所基于的每个标签对应的位置数量的平均值；min 表示该估计所基于的每个标签对应的位置数量的最小值；max 表示该估计所基于的每个标签对应的位置数量的最大值。