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Article
Norbert Duda, Auteur ; Wlodzimierz Chetnicki, AuteurGiven the many detailed studies on the breeding biology of gulls, surprisingly little is known about conspecific brood parasitism (CBP) in these birds. CBP has been recorded in only a few of the roughly 60 species of Laridae. We studied CBP in t[...]
Article
Norbert Duda, Auteur ; Wlodzimierz Chetnicki, Auteur ; Peter Waldeck, Auteur ; Malte Andersson, AuteurSocial monogamy with biparental care is the norm in gulls Laridae, but egg colour variation suggests that some nests may contain mixed clutches laid by more than one female. Here we use protein fingerprinting of egg albumen to assess the occurre[...]
