Figure 1

Study area and sampling locations. Red stars indicate the two pre-migratory sites, Drino valley (A) and Ioannina city (B). Black dots show the sampled breeding populations. SIC: Sicily (n = 12); APU: Apulia (n = 44); CRO: Croatia (n = 14); GIA: Ioannina (n = 24); LES: Agrinio (n = 16); CGR: Central Greece (n = 60); KIL: Kilkis (n = 13); KAL: Komotini (n = 20); LIM: Limnos Island (n = 11). Yellow and blue shaded areas represent the breeding and wintering distribution of the Lesser Kestrel respectively (modified from BirdLife International). Locations pooled for the purposes of the analyses are circled (CNG: Central-North Greece). Map was generated in QGIS v.2.12.3-Lyon (www.qgis.org/en/site/)⁸⁴.