Body mass loss amongst moulting Pochard Aythya ferina and Tufted Duck A. fuligula at Abberton Reservoir, South East England

• Published in: Journal of Ornithology
• Language: English
• Published: Springer-Verlag 2012
• Subjects: Wing moult; Moult migration; Phenotypic plasticity; Fat stores; Energy budget; Dee; National Environmental Research Institute
• Online Access: http://hdl.handle.net/2262/61884; https://doi.org/10.1007/s10336-011-0656-7

Abstract We assessed the contribution of endogenous fat stores to meeting energetic needs during the flightless moult period in Pochard and Tufted Duck by regressing mass on the progression of wing moult, as measured by primary length. Pochard lost between 22.1% (males) and 24.2% (females) of body m...