Wintering Behavior of Tundra Swan, Cygnus columbianus, at a Small Water-level Controlled Lake in the Middle and Lower Yangtze River Floodplain
Wintering Behavior of Tundra Swan, Cygnus columbianus, at a Small Water-level Controlled Lake in the Middle and Lower Yangtze River Floodplain
Xinjian Wang1,2, Eryan Yang1,2 and Lizhi Zhou1,2*
Fig. 1.
The study areas at Huangpi Lake. A, B, the study sites.
Fig. 2.
The wintering Tundra Swan at Huangpi Lake.
Fig. 3.
Daily activity rhythm of wintering Tundra Swan at Huangpi Lake.
Fig. 4.
Activity time budget of wintering Tundra swan and water level at Huangpi Lake.
Fig. 5.
Foraging intensity efficiency of adult and juvenile Tundra swan at different water levels.
Fig. 6.
Foraging efficiency of adult and juvenile Tundra swan at different water levels.
August 2021
Vol. 53, Iss. 4, Pages 1201-1601
