Figure 4
From: Barrier crossings and winds shape daily travel schedules and speeds of a flight generalist
Ground speed in relation to tailwind along the kestrel’s routes accounting for season and geography. We show the linear relationship between hourly speed and tailwind (including only travel segments) and the effects during the post-breeding migration over barriers (a) desert and (b) sea, and, (c) non-barriers and during the post-breeding migration over (d) desert, (e) sea and (f) non-barriers, accounting for diurnal (solid yellow line) and nocturnal migration (blue dashed line).
