白石砬子自然保护区夏季鸟类的初步调查

调查地区夏季鸟类有60种,隶属于12目27科,其中夏候鸟35种,留鸟25种。文中对各生境的鸟类种数和密度相比较,结合资源状况,提出某些保护鸟类的措施。

The Preliminary Research on the Summer Birds of Natural Conservation in Baishilazi

Baishilazi, the natural conservation of provincial grade, is located within the boundary of Kuandian County in Liaoning province. The whole area of it is 7. 333 hecfares. It is the scene of Korean pine-deciduous broad-leaved forest. There are 60 species of summer birds in this area, which are included in 12 orders and 27 families. Among them, there are 35 species of summer residents and 25 species of permanent residents. The results of quantity statistics show that there are 1 superior species and 21 normal species. A comparation in species number and individual number was given to every biotic environment. The results was that the former of forest birds is higher than that of other biotic environment, the latter of resident takes the first place. 60% of summer birds in this local area are insect-eating ones, three species are animal-hunting birds, and seven species belong to national second grade protected birds. Varied tit is rare and endemic bird.