Attributes / relations provided by
♦ 1The Diet of the Glossy Ibis During the Breeding Season in Doñana, Southwest Spain, Mercedes Macías, Andy J. Green and Marta I. Sánchez, Waterbirds 27(2): 234-239. 2004
♦ 2Robert Gwiazda, Dariusz Bukaciński, Grzegorz Neubauer, Marcin Faber,
Jacek Betleja, Magdalena Zagalska-Neubauer, Monika Bukacińska
& Przemysław Chylarecki, Diet composition of the Caspian Gull (Larus cachinnans) in inland Poland: effects of breeding area, breeding stage and
sympatric breeding with the Herring Gull (Larus argentatus), Ornis Fennica 88:80–89. 2011