Fig 1.
During two successive winters (November-February 2012–13 and 2013–14), we studied vigilance and activity time budget of the hooded crane in both the buffer zone and the core area of the Shengjin Lake National Nature Reserve (NNR), China.
Table 1.
Summary of focal observation samples of the hooded crane in the Shengjin Lake NNR, China.
Fig 2.
Percentage time spent vigilant as a function of flock size of the hooded crane in the core area A) and the buffer zone B) of the Shengjin Lake NNR, China.
Table 2.
Activity time budget of the hooded crane wintering in the Shengjin Lake NNR, China.
Fig 3.
Scan rate A) and mean scan duration B) of the hooded crane wintering in the Shengjin Lake NNR, China: A1, adult cranes in the buffer zone; A2, adults in the core area; J1, juveniles in the buffer zone; J2, juveniles in the core area.