LITERATURE. — Thonnérieux (1985); Thonnérieux et al. (1989); Dowsett (1993); Weesie (1996); Balanca & de Visscher (1997); Borrow & Demey (2001, 2014); Portier (2002c); Balanca et al. (2007); Zwarts et al. (2009); Sinclair & Ryan (2010); Dowsett et al. (2013); van den Bergh (2016).
FIELD DATA. — GBIF; WABD.
STATUS. — Palaearctic migrant.