摘要:Point count method was used to estimate the population structure of avian fauna in two different forest types in Bijrani, Serpdulli and Dhikala ranges of Corbett national Park, Uttarakhand, India. A total of 38 plots were randomly laid by four teams of two each in a period of ten days covering both mixed and Sal forests equally. DISTANCE 6.0 was used to determine density of birds and various bird guilds. Richness and diversity was esti- mated through SPECDIVERS. A total of 47 species were recorded from mixed and 27 species from Sal forest. Highest and lowest densities (±SE) in Sal forest were of Plum headed parakeet (11.63±2.30/km 2 ) and blue whis- tling thrush (0.06±0.01/ km 2 ) respectively. Whereas, in mixed forest, the highest density was of chestnut headed bee eater (13.84±3.25/ km 2 ) and lowest density was of Hoopoe (0.09±0.01/ km 2 ). In mixed forest, density, diver- sity and richness of insectivorous birds was found to be highest (42.91±6.27/ km 2 , 0.89±0.08 and 3.57±0.53 re- spectively), while, in Sal forests, omnivorous birds had highest density (76.73±4.22/ km 2 ) and insectivorous birds had highest diversity (±SE) and richness (±SE) (0.88±0.14 and 3.15±0.49 respectively). Carnivorous birds showed least density in both Sal (0.19±0.08/ km 2 ) and mixed forests (0.32±0.12/ km 2 )