Figure 3
From: Arctic avian predators synchronise their spring migration with the northern progression of snowmelt

(a) Day length (hours), (b) temperature (°C), (c) NDVI (vegetation index from −1 to 1) at each of the birds’ position compared between the days (from 10 days in the past to 10 days in the future) (Table 2). Dots with lines represent mean ± SE of the raw data and shaded areas represent SE of the model estimates.