Female Corncrake (Crex crex) singing in the wild

Authors
Citation
R. Ottvall, Female Corncrake (Crex crex) singing in the wild, J ORNITHOL, 140(4), 1999, pp. 453-456
Citations number
7
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Animal Sciences
Journal title
JOURNAL FUR ORNITHOLOGIE
ISSN journal
0021-8375 → ACNP
Volume
140
Issue
4
Year of publication
1999
Pages
453 - 456
Database
ISI
SICI code
0021-8375(199910)140:4<453:FC(CSI>2.0.ZU;2-M
Abstract
The male Corncrake (Crex crex) has a characteristic mating call. In aviary it has been shown that females can also produce a call similar to the male' s typical "crex crex". I describe a strikingly different call produced by a female on Oland, southeast Sweden. The sex identification was based on the small size during close examination in the hand. The female call has a sim ilar rhythm to the male call but lacks the rasping of the male and is almos t a barking sound. The female was heard calling continuously at night throu ghout a three-week-period. Another bird producing the same call was heard a bout 100 m from the caught female suggesting two females in the same field. No male Corncrakes were heard in the field during the period when the fema le was calling. Possible explanations for this behaviour and the function o f the call is discussed.