Abstract: We chose the walking trail,tourist road and the village where no tourism activities would reach as our research places based on the different forms of tourism activities in Pudacuo.By recording the bird's species,number,birds` feeding distance,the corresponding passenger flow volume and traffic volume in different period of time,then we can analysis the connection 1between recreational disturbance and bird's diversity and feeding distance.The result showed that bird diversity changes from the different intensity of disturbance.Among the three circumstances,bird's diversity in village is the highest,the second is in tourism road,and diversity in walking trail is the lowest.We found that passenger flow volume has significant negative impact on bird's diversity,while traffic volume has only weak effect.The impact of passenger flow volume on bird `s feeding distance varied upon different species of birds,it has a bigger effect on snipe birds and white wagtail (Motacilla alba) than swimming birds and corvidae birds.By studying the impact of different types of tourism activities on bird's diversity and bird's feeding distance,we can give more practical and scientific suggestions to improve the operation and management of Pudacuo.

Key words: recreational disturbance, bird diversity, bird feeding distance, Pudacuo National Park