Flocking behavior of forest birds in Hong Kong,South China

摘要

This paper reports observations of flocking behavior of birds in a well-protected secondary forest in Tai Po Kau Nature Reserve,Hong Kong Special Administrative Region,China.A total of 1025 flocks including 5255 birds and 48 species were observed between October 2002 and November 2003.Most flocks consisted of only one species.The observed flocks averaged 1.79 ± 0.05(SE) species and 5.13 ± 0.18(SE) birds.The Japanese White-eye was the most numerous species and was present in 21.6% of the observed flocks.Seasonal trends in both flock size and number of species were similar to those in overall bird density and species richness in the study area reported in a previous study.