Abstract: Bird population dynamics and its mechanism are an important topic of population ecology. In this study, we analyzed the banding number dynamic and explored affecting factors of Passeriformes in Qinhuangdao, Hebei Province, from 2005 to 2019, aiming to provide basic information for the protection of local birds and their habitats. We selected more banding numbers of insectivorous birds including Phylloscopidae, Muscicapidae, Zosteropidae and Paridae, and granivorous birds including Emberizidae, Fringillidae, and Phylloscopus inornatus, Fringilla montifringilla, Emberiza aureola, and analyzed the dynamics of their banding numbers. The results showed that the banding numbers declined for five families but not for Family Fringillidae, and also for the three species. The decline of banding numbers was related to food shortage due to forest pest control, illegal hunting, and human disturbances related with local economic development. Some suggestions from aspects of pest control, human activities and public education are put forward for the conservation of local birds and their habitats.

Key words: bird banding, population dynamics, Passeriformes, Qinhuangdao.