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Article
Ultraviolet coloration of avian parasitic egg does not cue egg rejection in the common redstart host
Marcel Honza, Auteur ; Miroslav Capek, Auteur ; Oldřich Mikulica, Auteur ; Peter Samaš, AuteurAvian brood parasite hosts can use distinct egg traits to recognize a parasitic egg. Previous studies suggested an important role of eggshell ultraviolet (UV) reflectance in rejection. According to the egg detectability hypothesis, natural selec[...]
Article
Miroslav Capek, Auteur ; Tereza Petrusková, Auteur ; Zuzana Šebelíková, Auteur ; Jesús Campos Serrano, Auteur ; Petr Procházka, Auteur ; Marcel Honza, Auteur ; Milica Požgayová, AuteurIn some systems, brood parasites may be attracted by vocal or visual signals connected with host breeding. We studied a Great Reed Warbler (Acrocephalus arundinaceus) population where annually 30–50% of nests are parasitized by the Common Cuckoo[...]
Article
Alfréd Trnka, Auteur ; Milica Požgayová, Auteur ; Petr Procházka, Auteur ; Miroslav Capek, Auteur ; Marcel Honza, AuteurThe use of active chemical defence against predators is relatively rare in birds. Among others, it has been reported for some members of family Cuculidae whose chicks, when threatened, expel dark foul-smelling liquid from their cloaca. Apart fro[...]
