LITERATURE. — Green & Sayer (1979); Thonnérieux et al. (1989); Dowsett (1993); Balanca & de Visscher (1997); Mauvais (1998); Borrow & Demey (2001, 2014); Portier (2002c); Balanca et al. (2007); Sinclair & Ryan (2010); Dowsett et al. (2013).
FIELD DATA. — eBird; GBIF; WABD; XC.
STATUS. — Resident; Breeding.