Abstract:

Simultaneous nesting of six species of secondary hollow-nesting passerine birds in abandoned European Bee-eater Merops apiaster nest-holes has been detected and described. The holes were occupied by Great Tit Parus major, Spotted Flycatcher Muscicapa striata, European Pied Flycatcher Ficedula hypoleuca, Black Redstart Phoenicurus ochruros, Eurasian Tree Sparrow Passer montanus and White Wagtail Motacilla alba, which formed a multi-species settlement in a European Bee-eater colony.