Fig. 2.

Map showing frequently revisited sites. Polygons show the 100% minimum convex polygons (MCPs) inferred from the 50% top revisited sites for each individual (different colours for each individual). For visualization purposes two revisitation sites of one individual are not shown. White, dashed rectangles illustrate four locations that were frequently visited by more than one GPS-tracked bird. Pictures show the anthropogenic structures at each site, and potential associated human food source (two urban spaces at low elevation, and two mountain restaurants at high elevation). Water bodies are shown in blue, anthropogenic structures such as buildings and roads are shown in black. The different shades of grey illustrate changes in elevation