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Aerial Displaying and Flying Ability of Chatham Island SnipeCoenocorypha pusillaand New Zealand SnipeC. aucklandica

 

作者: MiskellyC.M.,  

 

期刊: Emu - Austral Ornithology  (Taylor Available online 1990)
卷期: Volume 90, issue 1  

页码: 28-32

 

ISSN:0158-4197

 

年代: 1990

 

DOI:10.1071/MU9900028

 

出版商: Taylor&Francis

 

数据来源: Taylor

 

摘要:

SummaryMiskelly, C.M. (1990). Aerial displaying and flying ability of Chatham Island SnipeCoenocorypha pusillaand New Zealand Snipe C.aucklandica Emu90, 28–32.Chatham Island SnipeCoenocorypha pusillaand New Zealand SnipeC. aucklandicawere studied intensively during one and six breeding seasons respectively, and observations of aerial displays and related behaviours recorded. Chatham Island Snipe gave three types of acoustic aerial displays. The displays were performed only at night. Type 1 was a strident monosyllabic call, also given in several contexts on the ground. Type 2 was a series of disyllabic calls identical to a common territorial display given on the ground. Type 3 began with a series of disyllabic calls and ended with a non-vocal‘roar’considered homologous to the‘drumming’displays ofGallinagosnipes. Evidence for non-vocal acoustic displaying by three subspecies of New Zealand Snipe is discussed. The intensively studied Snares Island Snipe C.aucklandica huegeliwas not seen to give aerial displays. Chatham Island Snipe were flushed significantly more frequently and flew further than Snares Island Snipe, and had significantly lower wing-loadings. The aerial displays of Chatham Island Snipe were similar to descriptions of aerial displays of the‘Chubbia’snipes of South America: Cordilleran SnipeGallinago stricklandii, Andean SnipeG. jamesoniand Imperial SnipeG. imperialis.

 

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