Title:

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:

Museum & Institute of Zoology

Place of publishing:

Warszawa

Date issued/created:

2004

Description:

Bibliogr. p. 81 ; P. [79]-81 ; 27 cm ; Abstract. pol.

Type of object:

Journal/Article

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:

Acta Ornithologica

Volume:

39

Issue:

1

Start page:

79

End page:

81

Resource type:

Text

Detailed Resource Type:

Journal

Format:

text/xml

Source:

MiIZ PAN, call no. patrz sygn. czas. P.257-39-1 ; MiIZ PAN, call no. patrz sygn. czas. P.4568-39-1 ; click here to follow the link

Language:

eng

Rights:

Rights Reserved - Free Access

Terms of use:

Copyright-protected material. May be used within the limits of statutory user freedoms

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Access:

Open