Birds and habitats recorded in the lower Mai Valley Important Bird and Biodiversity Area
Abstract
A bird survey was carried out in the lower Mai Valley Forests (MVF) Important Bird and Biodiversity Area (IBA) in far eastern Nepal, between 180 m and 2200 m from 01 to 10 March 2022. An assessment was also made of the environmental conditions of forest and river habitats, and type and extent of agriculture. A comparison was made with a March 1981 visit. Observations were noted during a ten-day trek from Ilam (1205 m) up to Hangetham (2200 m) and down to Sukhani (180 m). The large number of 256 bird species was recorded, including one globally threatened and five globally near-threatened species, five restricted-range species, 20 nationally threatened and eight nationally near-threatened species. One new species for Nepal, black-breasted thrush Turdus dissimilis and three rare Nepal species not found in the IBA for at least 20 years, were also recorded. Extensive intact areas of semi-evergreen subtropical and lower temperate mixed broadleaved forests valuable for birds still remain. Tropical forests have been fragmented and mainly replaced by tea and rubber plantations, and also by the spread of agriculture. However, Sukhani still comprises a substantial semi-evergreen broadleaved forest important for birds, although it is highly threatened. Hunting is probably a significant threat to bird species in MVF. Despite loss and degradation of some forests, especially in the tropical zone, MVF still qualify as an IBA. The Mai Khola habitat has been severely damaged by the Mai Khola Hydroelectric Project, which became operational in 2015, resulting in serious declines in river birds. MVF remain outside the existing protected area network. Including MVF in Nepal’s protected area system would ensure conservation of the species-rich semi-evergreen mixed broadleaved tropical and subtropical forests that are currently an important omission. Further bird surveys are recommended at all elevations and in tropical and subtropical forests that have so far not been covered.
References
Acharya, S. 2016. ebird https://ebird.org/checklist/S59144536 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Acharya, S., Giri, T. and Inskipp, C. in press. The first record of Black-breasted Thrush Turdus dissimilis for Nepal. Birding Asia.
Baral, H. S. and Inskipp, C. 2005. Important Bird Areas in Nepal: key sites for conservation. Bird Conservation Nepal and BirdLife International, Kathmandu, Nepal and Cambridge, UK, p 242.
Basnet, S. 2007. Nepal Rare Birds Committee (NRBC) Report 2007. Danphe 16(4):10–11.
Basnet, Y. R. and Sapkota, J. 2006. Ornithological survey of lower Mai-valley, Ilam, eastern Nepal. A report to Oriental Bird Club, U.K and Bird Conservation Nepal, p 31. http://himalaya.socanth.cam.ac.uk/collections/inskipp/2006_003.pdf Accessed on 31 March 2022.
Bird Conservation Nepal, Department of National Parks and Wildlife Conservation and Department of Forests and Soil Conservation in press. Important Bird and Biodiversity Areas of Nepal, Kathmandu, Nepal.
BirdLife International 2014. Spotlight on Important Bird Areas. Presented as part of the BirdLife State of the world's birds website. Available from: http://www.birdlife.org/data-zone Accessed on 01 April 2022.
Chaudary, B. 2022a. ebird checklist https://ebird.org/checklist-/S104265050 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Chaudhary, B. 2022b. ebird checklist https://ebird.org/check-list/S108435972 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Chaudhary, D. 2018. Ebird https://ebird.org/check-list/S82784467 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Coker, M. and Hoyer, R. 2016. ebird checklist https://ebird.org/checklist/S29853473 eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York. Available: http://www.ebird.org Accessed 31 May 2022.
Cox, J. Jr 1992. East Nepal birdquest and forest habitat assessment, November–December 1992, p 70. http://himalaya.socanth.cam.ac.uk/collections/inskipp/1992_002.pdf Accessed on 31 March 2022.
Curson, J. and Bose, A. 1989. ebird https://ebird.org/check-list/S105561809 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Fleming, R. L. Sr and Traylor, M. A. 1964. Further notes on Nepal birds. Fieldiana: Zoology 35(9):495–558.
http://ia600306.us.archive.org/27/items/furthernotesonne359flem/furthernotesonne359flem.pdf Accessed on 31 March 2022.
Grimmett, R., Inskipp, C. and Inskipp, T. 2011. Birds of the Indian Subcontinent. Helm Field Guide. Christopher Helm, London, UK, p 528.
Grimmett, R., Inskipp, C., Inskipp, T. and Baral, H. S. 2016. Birds of Nepal Helm Field Guide, Revised edition. Christopher Helm, London, UK, p 368.
Halliday, J. 1989. Notes on birds recorded in Nepal, 12 November 1988 – 2 February 1989, p 30. http://himala-ya.socanth.cam.ac.uk/collections/inskipp/1989_020.pdf Accessed on 31 March 2022.
Halliday J. and McKnight, G. 1990. An investigation of the status and conservation of forest birds in the Mai and Tamur valleys, eastern Nepal. Report to Nepal Bird Watching Club.
Halliday, J. and McKnight, G. 1993. Disappearing forests endanger birdlife. Nepal Bird Watching Club Bulletin 2(2):1–2.
Inskipp, C. 1989. Nepal’s forest birds: their status and conservation. International Council for Bird Preservation Monograph No. 4, Cambridge, UK, p 169.
Inskipp, C. 2006. Report on rare birds in Nepal 2005. Danphe 15(1):4–5.
Inskipp, C. and Baral, H. S. 2019. Nepal’s forest birds: their status and conservation. Fully revised edition. Himalayan Nature, Kathmandu, Nepal.
Inskipp, C., Baral, H. S., Phuyal, S., Bhatt, T. R., Khatiwada, M., Inskipp, T., Khatiwada, A., Gurung, S., Singh, P. B., Murray, L., Poudyal, L. and Amin, R. 2016. The status of Nepal’s Birds: the National Red List Series. Zoological Society of London. http://www.himalayannature.org Accessed on 1 April 2022.
Inskipp, C. and Inskipp, T. 1991. A guide to the birds of Nepal. (2nd edition). Christopher Helm, London, UK, p 400.
Inskipp, C., Sherpa, A. S., Bista, D., Baral, H. S., Bunskoek, M., Chaudhary, H. and Chaudhary, R. 2019. Conservation value of upper Mai valley forest in Panchthar – Ilam – Taplejung (PIT) corridor in eastern Nepal for birds. The Himalayan Naturalist 2(1):11–16. http://fon-nepal.org/userfiles/2Conservation%20value%20of%20upper%20Mai%20valley%20forest%20for%20birds_theHimalayanNaturalist_Volume2Issue1April2019.pdf Accessed on 1 April 2022.
Joshi, A., Baniya, S., Shrestha, N., Sapkota, R. P. and Baral, H. S. 2022. Contiguous forest supports higher bird diversity compared to isolated forest: Evidence from forest landscape of Eastern Nepal. Global Ecology and Conservation 36:e02133.
https://doi.org/10.1016/j.gecco.2022.e02133
Kar, M. 2016. ebird https://ebird.org/check-list/S98229403 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Perlman, Y. 1999a. ebird https://ebird.org/check-list/S61308577 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Perlman, Y. 1999b. ebird https://ebird.org/check-list/S61309105 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Perlman, Y. 1999c ebird https://ebird.org/check-list/S61398194 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York.
Robson, B., Keys, A., Ellison, M., Pandey, M. and Pokharel, K. P. 2008. CEPF bird survey of Mai Valley, March 2008. Report to Bird Conservation Nepal, Kathmandu, Nepal and Royal Society for Protection of Birds, Sandy, UK.
Sanima-Mai Hydropower Ltd 2022. Mai Hydropower project. https://www.maihydro.com/ Accessed on 10 April 2022.
Stattersfield, A. J., Crosby, M. J., Long, A. J. and Wege, D. C. 1998. Endemic Bird Areas of the world: priorities for biodiversity conservation. BirdLife International, Cambridge, UK, p 846.
van Riessen, A. 2016a. ebird checklist https://ebird.org/india/checklist/S47683176, https://ebird.org/india/checklist/S47683266, https://ebird.org/india/checklist/S47683312 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York. Accessed on 31 May 2022.
van Riessen, A. 2016b. ebird checklist https://ebird.org/india/checklist/S58509625 Accessed on 31 May 2022. eBird: An online database of bird distribution and abundance [web application]. eBird, Ithaca, New York. Accessed on 31 May 2022.
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