云南西部的主要食虫鸟

STUDIES ON SOME IMPORTANT INSECT-EATING BIRDS FROM WEST YUNNAN

中国科学院动物研究所与昆明动物研究所合作,于1964—1965年4—10月,在云南临沧、保山、德宏地区进行考察;继后,昆明动物研究所又于1974—1975年4—10月在高黎贡山北段考察,1977年11月至1978年1月再次到德宏,临沧地区采集,先后采到鸟类18目,51科及4亚科,367种,并收集鸟胃标本2,216号。其中每种采有三个以上鸟胃的主要食虫鸟计157种(占本地区采集鸟种数的42.8%),鸟胃标本1,365号(占收集鸟胃总数61.6%)。现将157种主要食虫鸟类的食性分析资料整理报道,为保护鸟类,防治农林业及卫生害虫提供参考。

During April-October,1964,1965,1974 and 1975,and also from November,1977 to January,1978,avifaunal surveys were conducted in west Yunnan at prefectures of Lin-chang,Bao-shan,De-hong and Gong-shan County.A total of 367 species and subspecies of bird skins and 2216 stomachs have been collected,belonging to 18 orders 51 families and 4 subfamilies.Among them,157 species have been ascertained to be important insect-eating birds.They chiefly feed on insects,which constitute more than 50% of the total amount of food and even up to 100%.113 species of birds feed entirely on insects or more than 90% of the food are insects,44 species more than 50% (see Appendix 1,2 and 3).Of the 157 species,130 arc residents,22 summer visitors,and only 4 migrants.Since most of the insects consumed are injurious forms,the birds consuming them are considered as being beneficial to agriculture and forestry.Although some of them occasionally prey on a number of beneficial insects and then bring about certain unfavorable effects,as a whole,they are much more beneficial than they do harmful to human beings.Consequently they deserve to be well protected,particularly those forms which breed in this region.