Fig. 2

GPS fixes of stopover sites within the QTP for tagged Bar-headed Geese during autumn and spring migration in 2016 and 2018/2019. a stopovers during autumn migration; b stopovers during spring migration. NNRs: National Nature Reserves of China; IBAs: Important Bird and Biodiversity Areas; QTP, the Qinghai-Tibet Plateau. Sample sizes are indicated by n (number of instrumented individuals generating the data), Ns (number of stopovers within QTP) and Ng (total number of GPS fixes per category). The explanations apply also to Figs. 3, 4