Diet composition of three swan species (Mute Swan, Whooper Swan and Bewick's ...

The quality of swans' nutrition at spring migration stopovers is important for their successful breeding. The aim of this study was to increase our understanding of the...春季迁徙停歇地天鹅的营养状况，对其成功繁育至关重要。本研究旨在加深我们对……的理解。