References
- Ahmad K., Yahya H.S.A. 2010. Winter diversity of birds in Makaibari Tea Estate, Kurseong, Darjeeling, India. Indian Forester 69-87.
- Ahmed Y.S. 1941. A report on the Development of the Coochbehar State Forests. Coochbehar State Press.
- Aich A., Mukhopadhyay S.K. 2008. Comparison of avifauna at the edges of contrasting forest patches in Western Ghat Hills of India. The Ring 30 (1/2): 71-79.
- Ali S., Ripley S. D. 1987. Compact Handbook of Birds of India and Pakistan. Oxford Univ. Press.
- Allen D., Anderton J., Kazmierczak K. 1996. Report on an ornithological visit to Buxa Tiger Reserve, West Bengal, India, 17 February to 6 March 1992. Forktail 12: 31-33.
- Aysegul B., Samraat P. 2004. An ornithological survey in northeast India. Forktail 20: 15-24.
- Bahuguna N. C., Mallick J. 2004. Ungulates of India. Wildlife Institute of India. ENVIS 07(1): 1-16.
- Beaman M. 1994. Palearctic birds: A checklist of the birds of Europe, North Africa and Asia north of the foothills of the Himalayas. Stonyhurst, Harrier Publications.
- Bibby C.J., Burgess N.D., Hill D.A. 1992. Bird census techniques. Academic Press.
- Bibby C.J., Burgess N.D., Hill D.A., Mustoe S.H. 2000. Bird Census Techniques. Academic Press.
- BirdLife International. 2012a. Endemic Bird area factsheet: Assam plains. http://www.birdlife. org. Accessed on 01.09.2012.
- BirdLife International. 2012b. Central Asia Factsheet. http:// www.birdlife.org. Accessed on28.11.2012.
- Block M.W., Brennan L. A. 1993. The habitat concept in ornithology. Current Ornithology 11: 35-91.
- Buckland S.T., Anderson D.R., Burnham K.P., Laake J.L. 1993. Distance sampling: estimating the abundance of biological capacity of migratory shorebirds in a newly formed Zetland, Yangtze River estuary, China. Zool. Stud. 48: 769-779.
- Champion H.G., Seth S.K. 1968. A Revised Survey of Forests of India. Publication Branch, Govt. of India.
- Cody M.L. 1985. Habitat selection in birds. Academic Press.
- Collar N.J., Cosby M.J., Stattersfield A.J. 1994. Birds to Watch 2- The World List of Threatened Birds. BirdLife International.
- Crosby M. 1996. Threatened birds in the Eastern Himalayas. Oriental Bird Club Bulletin 23: 21-24.
- Datta T. 2011. Human interference and avifaunal diversity of two wetlands of Jalpaiguri, West Bengal, India. Journal of Threatened Taxa 3 (12): 2253-2262.
- Gibbons D.W., Hill D., Sutherland W.J. 1996. In: Sutherland W. J. (eds). Ecological census techniques: a handbook. Cambridge Univ. Press, 27-259.
- Gopal B. 1995. WWF handbook of wetland management. World Wildlife Fund (WWF) publication.
- Grimmett R., Inskipp C., Inskipp T. 1998. Birds of the Indian Subcontinent. Oxford Univ. Press.
- Hutto R.L., Pletschet S.M., Hendricks P. 1986. A fixed-radius point count method for nonbreeding and breeding season use. The Auk 103: 593-602.
- Inskipp T., Lindsey N., Duckworth W.A. 2001. Checklist of the Birds of the Oriental Region. Oriental Bird Club.
- Islam M.Z., Rahmani AR. 2004. Important Bird Area in India: Priority Sites for Conservation. IBCN, BNHS, BirdLife International.
- Joshi K.K., Bhatt D. 2011. Birds of Three Different Forest (Sal, Pine and Oak) Habitats in Nainital District (Western Himalaya) of Uttarakhand, India. Nature and Science 9(7): 114-121.
- Kazmierczak K., van Perlo B. 2000. A Field Guide to the Birds of India. Om Book Service.
- Kumar A., Sati J.P., Tak P.C., Alfred J.R.B. 2005. Handbook on Indian Wetland Birds and their Conservation. Zoological Survey of India.
- Morrison M.L. 1992. Bird abundance in forests managed for timber and wildlife resources, Biol.Conserve. 60: 127-134.
- Morse D.H. 1970. Ecological aspects of some mixed species foraging flocks of birds. Ecol. Monogr. 40: 118-168.
- Morse D.H. 1977. Feeding behaviour and predator avoidance in heterospecific groups. BioScience 27: 332-329.
- Naaz S., Das S.K., Mukhopadhyay S.K. 2005. Report on the ornithological visit to Terai forests of the Jalpaiguri Distict of West Bengal, India. Journal of Natural History 1(1): 79-85.
- Pawar S. S., Birand A. 2001. A survey of amphibians, reptiles, and birds in Northeast India.
- Powell G.V.N. 1989. On the possible contribution of the mixed species flocks to species richness in neotropical avifaunas. Behav. Ecol. Sociobiology 24: 387-393.
- Raman T.R.S. 2003. Assessment of census techniques for interspecific comparisons of tropical rainforest bird densities: a field evaluation in the Western Ghats, India. Ibis 145: 9-21.
- Robin V.V., Davidar P. 2002. The vertical stratification of birds in mixed species flocks at Parambiculam, South india: A comparison between habitats. Jour. Bom. Nat. Hist. Soc. 99(3): 389-399.
- Roy U.S., Pal A., Banerjee P., Mukhopadhyay S.K. 2011a. Comparison of avifaunal diversity in and around Neora Valley National Park, West Bengal, India. Journal of Threatened Taxa 3(10): 2136-2142.
- Roy U.S., Goswami A.R., Aich A., Mukhopadhyay S.K. 2011b. Changes in Densities of Waterbird Species in Santragachi Lake, India: Potential Changes in Limnochemical Variables. Zool. Stud. 50(1): 76-84.
- Sivakumar S., Singha H., Prakash V. 2004. Notes on the population density and feeding ecology of the Collared Falconet Microhierax caerulescens in Buxa Tiger Reserve, West Bengal, India.Forktail 20: 97-99.
- Sivakumar S., Prakash V. 2004. Water birds of Buxa Tiger Reserve, West Bengal. Zoos’ Print Journal 19(4): 1451-1452.
- Sivakumar S., Varghese J., Prakash V. 2006. Abundance of birds in different habitats in Buxa Tiger Reserve, West Bengal, India. Forktail 22: 128-133.
- Stattersfield A.J., Crosby M.J., Long A.J., Wege D.C. 1998. Endemic Bird Areas of the World: Priorities for Biodiversity Conservation. BirdLife Conservation Series No. 7. BirdLife International.
- Sutherland W.J. 2006. Ecological Census Techniques: A Handbook. Cambridge Univ. Press. Terborgh J. 1990. Mixed species flocks and polyspecific associations:costs and benefits of mixed groups to birds and monkeys. Amer. Jour. Primatol. 21: 87-100.
- Thiolly J.M., Meyburg B.U. 1988. Forest fragmenation and the conservation of raptors: A survey on the Island of Java. Biol. Conserve 44: 229-250.