Fig. 4
From: Adaptive drift and barrier-avoidance by a fly-forage migrant along a climate-driven flyway
Seasonal linear relationships between the latitude of trans-Sahelian movements, longitude and the ITF position (autumn = red; spring = blue). a, b Latitude of the ITF and the trans-Sahelian migrations of falcons in relation to longitude. c Latitude of the trans-Sahelian migrations in relation to the latitude of the ITF at corresponding longitudes and times. The black dotted line indicates where latitude of falcons and ITF would match. Points below the black line correspond to cases where a falcon travelled south of the ITF. d Individual trend lines for each season showing consistency of the linear correlation between falcon and ITF positions