Does the vicinity of the Black-Headed Gull colony («Chroicocephalus ridibundus») increase the breeding success of the Common Tern («Sterna hirundo») on the islands of the middle Vistula?

Studia Ecologiae et Bioethicae, Tom 16, Numer 4 (2018) s. 43-50
Dariusz Bukaciński, Monika Bukacińska, Milena Grabowska