The Breeding Ecology of the Boreal Owl (Aegolius funereus beickianus) in Gansu Province, China
The Breeding Ecology of the Boreal Owl (Aegolius funereus beickianus) in Gansu Province, China
Yongke Zhu1,2, Yun Fang1, Songhua Tang1, Yuan Gu3, Jinming Zhao4, Wolfgang Scherzinger5 and Yue-Hua Sun1*
The distribution of nest boxes for boreal owl at Lian Hua Shan. White for unused nests, yellow for breeding once, blue for breeding twice, red for breeding three times.
The adult bird (A), egg (b, red arrow) and nestlings (B), 1 day old, (C) nestlings opened their eyes (12 days old), (D) The female left the nest-box (17-21 days old) (photographed by Yongke Zhu and Yun Fang).