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The status and conservation of whooper swans (Cygnus cygnus) in China

โœ Scribed by Yuan Li; Li Xiaomin; Yu Hongxian; Guo Libin; Zhang Taizhong; Gao Qingjun; Zeng Daihua


Publisher
Springer
Year
1997
Tongue
English
Weight
365 KB
Volume
8
Category
Article
ISSN
1007-662X

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Deposition of faeces by black swans (Cygnus atratus Latham) feeding on benthic algae in a shallow New Zealand lake was determined by collection of faeces from the lake bottom and from the shore . The two methods showed good agreement after adjustment for the weight loss on immersion . The mean daily