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Nest sharing by two blackbird Turdus merula females
Subtitle:Acta Ornithologica, vol. 39, no. 1 ; Użytkowanie tego samego gniazda przez dwie samice kosa
Creator:Wysocki, Dariusz (1961– ) ; Walasz, Kazimierz (1952– ) ; Polska Akademia Nauk. Muzeum i Instytut Zoologii
Contributor:Museum and Institute of Zoology, Polish Academy of Sciences
Publisher: Place of publishing: Date issued/created: Description:Bibliogr. s. 81 ; S. [79]-81 ; 27 cm ; Streszcz. pol. Nazwy taksonów także w jęz. łac.
Type of object: Subject and Keywords:Kos (ptaki) -- biologia lęgowa -- Polska [KABA] ; Kos (ptaki) -- zwyczaje i zachowania -- Polska [KABA]
Abstract:Two cases of nest sharing by two Blackbird pairs each were recorded during a long-term urban study. In the first case, two females simultaneously incubated eggs in the same nest. The nestlings were later seen to be fed by the two pairs of adult birds. In the second case, a nest containing 4 eggs laid by one female was taken over by another, which, having chased the nest owner away, laid 5 eggs of her own. The likely cause of nest sharing in the first case was the loss of eggs at an early stage of laying by the second female. In the second case, nest sharing seems to have been caused by nest competition. The details of the parents and siblings of the females involved in the first case permits the conclusion that the absence of competition between the females (and even their co-operation in feeding the young) was not caused by their genetic affinity.
Relation: Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Format: Source:MiIZ PAN, sygn. patrz sygn. czas. P.257-39-1 ; MiIZ PAN, sygn. patrz sygn. czas. P.4568-39-1 ; click here to follow the link
Language: Rights:Prawa zastrzeżone - dostęp nieograniczony
Terms of use: Digitizing institution:Muzeum i Instytut Zoologii Polskiej Akademii Nauk
Original in:Biblioteka Muzeum i Instytutu Zoologii PAN
Projects co-financed by:Program Operacyjny Innowacyjna Gospodarka, lata 2010-2014, Priorytet 2. Infrastruktura strefy B + R ; Unia Europejska. Europejski Fundusz Rozwoju Regionalnego
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https://www.bioone.org/doi/pdf/10.3161/068.039.0103