Great and Spotted Bowerbirds Chlamydera nucha/is and C. maculata (Ptilonorhynchidae) Sympatric and Interacting at Each Other's Bowers
2016; BirdLife Australia; Volume: 16; Issue: 2 Linguagem: Inglês
ISSN
2206-3447
AutoresClifford Frith, Dawn Frith, M.N. McCULLOCH,
Tópico(s)Species Distribution and Climate Change
ResumoAn area of sympatry between bower-attending Great and Spotted Bowerbirds Chlamydera nuchalis and C. maculata (Ptilonorhynchidae) in northern Queensland is described. Great Bowerbirds maintained bowers within little more than a kilometre of riverine vegetation and Spotted Bowerbirds mostly beyond this and in more arid habitat. The two species meet where the two favoured habitats abut and thus do so linearly either side of the major river system of the study area. The two closest pairs of bowers of each species were 1020 m and 1200 m apart. Spotted Bowerbirds visited bowers of, and displa yed to, Great Bowerbirds, and the latter species visited bowers of the former. Photographic evidence is presented. Mean nearest-neighbour distance of 10 active Spotted Bowerbird bowers was 870 m (range 645-1170 m) and of nine Great Bowerbird bowers was 1370 m (range 825-1920 m).
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