Ali, S. (1977). Field Guide to the Birds of the Eastern Himalayas. London: Oxford University Press.Google Scholar

Ali, S. & Ripley, S.D. (1978). Handbook of the Birds of India and Pakistan. Vol. 1. Bombay: Oxford University Press.Google Scholar

Anderson, R.C. (2009). Do dragonflies migrate across the western Indian Ocean? Journal of Tropical Ecology, 25, 347–358.CrossRefGoogle Scholar

Batbayar, N., Reading, R., Kenny, D., Natsagdorj, T. & Won Kee, P. (2008). Migration and movement patterns of Cinereous Vultures in Mongolia. Falco, 32(2), 5–7.Google Scholar

Berthold, P. (2001). Bird Migration: A General Survey. Oxford: Oxford University Press.CrossRefGoogle Scholar

Bildstein, K.L. (2006). Migrating Raptors of the World: Their Ecology and Conservation. New York: Cornell University Press.Google Scholar

Bildstein, K.L., Smith, J.P. & Ruelas Inzunza, E. (2008). The future of raptor-migration monitoring. In Bildstein, K.L., Smith, J.P., Ruelas Inzunza, E. & Veit, R.R., eds., State of North America’s Birds of Prey. Cambridge, MA, and Washington, DC: Nuttall Ornithological Club & American Ornithologists’ Union, pp. 435–446.Google Scholar

Bijlsma, R.G. (1991). Migration of raptors and Demoiselle Cranes over central Nepal. In Chancellor, R.D. & Meyburg, B.U., eds., Birds of Prey Bulletin. Berlin, London and Paris: The World Working Group on Birds of Prey and Owls, pp. 73–80.Google Scholar

BirdLife International, 2015, IUCN Red List for Birds. Available from: www.birdlife.org. [6 March 2015].Google Scholar

Bishop, C.M., Spivey, R.J., Hawkes, L.A., et al. (2015). The roller coaster flight strategy of Bar-headed Geese conserves energy during Himalayan migrations. Science, 347, 250–254.Google Scholar

Bögel, R. (1990). Measuring flight altitudes of Griffon Vultures by radio telemetry. International Ornithological Congress, 20, 489–490.Google Scholar

Chettri, N., Rastogi, A. & Singh, O.P. (2006). Assessment of raptor migration and status along the Tsango-Brahmaputra corridor (India) by a local communities participatory survey. Avocetta, 30, 61–68.Google Scholar

Chhangani, A.K. & Mohnot, S.M. (2008). Demography of migratory vultures in and around Jodhpur, India. Vulture News, 58, 23–34.Google Scholar

Clarke, R., Prakash, V., Clark, W.S., Ramesh, N. & Scott, D. (1998). World record count of roosting harriers Circus in Blackbuck National, Velavadar, Gujarat, north-west India. Forktail, 14, 70–71.Google Scholar

Clement, P. & Holman, D. (2001). Passage records of Amur Falcon Falco amurensis from SE Asia and southern Africa including first records from Ethiopia. Bulletin British Ornithology Club, 121, 222–230.Google Scholar

Das, D., Cuthbert, R.J., Jakati, R.D. & Prakashm, V. (2011). Diclofenac is toxic to the Himalayan Vulture Gyps himalayensis. Bird Conservation International, 21, 72–75.Google Scholar

DeCandido, R., Allen, D. & Bildstein, K.L. (2001). The migration of Steppe Eagle (Aquila nipalensis) and other raptors in central Nepal, autumn 1999. Journal of Raptor Research, 35, 35–39.Google Scholar

DeCandido, R., Gurung, S., Subedi, T. & Allen, D. (2013). The east-west migration of Steppe Eagle Aquila nipalensis and other raptors in Nepal and India. BirdingASIA, 19, 18–25.Google Scholar

Den Besten, J.W. (2004). Migration of Steppe Eagle Aquila nipalensis and other raptors along the Himalayas past Dharamsala, India, in autumn 2001 and spring 2002. Forktail, 20, 9–13.Google Scholar

de Roder, F.E. (1989). The migration of raptors south of Annapurna, Nepal, autumn 1985. Forktail, 4, 9–17.Google Scholar

Dixon, A., Batbayar, N. & Purev-Ochir, G. (2011). Autumn migration of an Amur Falcon Falco amurensis from Mongolia to the Indian Ocean tracked by satellite. Forktail, 27, 86–89.Google Scholar

Dixon, A., Sokolov, A. & Sokolov, V. (2012). The subspecies and migration of breeding Peregrines in northern Eurasia. Falco, 39, 4–9.Google Scholar

Dodge, S., Bohrer, G., Bildstein, K., et al. (2014). Environmental drivers of variability in the movement ecology of turkey vultures (Cathartes aura) in North and South America. Philosophical Transactions of the Royal Society B: 20130195.Google Scholar

Donald, C.H. (1905). A congregation of harriers. Journal of the Bombay Natural History Society, 16, 504–505.Google Scholar

Donald, C.H. (1923). Migration of eagles. Journal of the Bombay Natural History Society, 29, 1054–1055.Google Scholar

Eastham, C. (1998). Satellite tagging of Sakers in the Russian Altai. Falco, 12, 10–12.Google Scholar

Eastham, C.P., Quinn, J.L. & Fox, N.C. (2000). Saker Falco cherrug and Peregrine Falco peregrinus falcons in Asia: determining migration routes and trapping pressure. In Chancellor, R.D. & Meyburg, B.U., eds., Raptors at Risk. British Columbia: Hancock House, pp. 247–258.Google Scholar

Ellis, D.H., Moon, S.L. & Robinson, J.W. (2001). Annual movements of a Steppe Eagle (Aquila nipalensis) summering in Mongolia and wintering in Tibet. Journal of the Bombay Natural History Society, 98, 335–340.Google Scholar

Farmer, C.J., Safi, K., Barber, D.R., Newton, I., Martell, M. & Bildstein, K.L. (2010). Efficacy of migration counts for monitoring continental populations of raptors: an example using the Osprey (Pandion haliaetus). Auk, 127, 863–870.Google Scholar

Feijen, C., Feijen, H.R. & Shulten, G.G.M. (2005). Raptor migration in Bhutan: incidental observations. BirdingASIA, 3, 61–62.Google Scholar

Ferguson-Lees, J. & Christie, D.A. (2001). Raptors of the world. Boston, MA: Houghton Mifflin.Google Scholar

Fleming, R.L. (1983). An east-west Aquila eagle migration in the Himalayas. Journal of Bombay Natural History Society, 80, 58–62.Google Scholar

Galligan, T.H., Amano, T., Prakash, V.M., et al. (2014). Have population declines in Egyptian Vulture and Red-Headed Vulture in India slowed since the 2006 ban on veterinary diclofenac? Bird Conservation International, 24, 272–281.CrossRefGoogle Scholar

Gill, F. & Donsker, D. (2015). IOC World Bird List (v. 5.1). Available from: www.worldbirdnames.org. [27 March 2015].Google Scholar

Grimmett, R., Inskipp, C. & Inskipp, T. (1999). Birds of India, Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka, and the Maldives. Princeton, NJ: Princeton University Press.Google Scholar

Grimmett, R., Inskipp, C. & Inskipp, T. (2000). Birds of Nepal. Princeton, NJ: Princeton University Press.Google Scholar

Gurung, S.B., Gurung, S., Gurung, S. & McCarty, K. (2004). Autumn 2003 raptor migration in Nepal. International Hawkwatcher, 9, 12–15.Google Scholar

Hawkes, L.A., Balachandran, S., Batbayar, N., et al. (2012). The paradox of extreme high-altitude migration in bar-headed geese Anser indicus. Proceedings of the Royal Society B: 2012.2114.Google Scholar

Inskipp, C. & Inskipp, T. (1985). A Guide to the Birds of Nepal. 2nd ed. London: Christopher Helm.Google Scholar

Inskipp, C., Inskipp, T. & Grimmett, R. (1999). Birds of Bhutan. London: Christopher Helm.Google Scholar

Kenny, D., Batbayar, N., Tsolmonjav, P., Jo Willis, M., Azua, J. & Reading, R. (2008). Dispersal of Eurasian Black Vulture Aegypius monachus fledglings from the Ikh Nart Nature Reserve, Mongolia. Vulture News, 59, 13–19.Google Scholar

Kerlinger, P. (1989). Flight Strategies of Migrating Hawks. Chicago: University of Chicago Press.Google Scholar

Koning, F.J. (1976). Notes on the birds of prey in the Indus Valley. Journal of the Bombay Natural History Society, 73, 448–455.Google Scholar

Laybourne, R.C. (1974). Collision between a vulture and an aircraft at an altitude of 37,000 feet. Wilson Bulletin, 86, 461–462.Google Scholar

Meyburg, B.U., Meyburg, C. & Paillat, P. (2012). Steppe Eagle migration strategies –revealed by satellite telemetry. British Birds, 105, 506–519.Google Scholar

Moreau, R.E. (1972). The Palaearctic-African Bird Migration Systems. London: Academic Press.Google Scholar

Naoroji, R. (2006). Birds of Prey of the Indian Subcontinent. London: Christopher Helm.Google Scholar

Newton, I. (2008). The Migration Ecology of Birds. London: Academic Press.Google Scholar

Ogada, D.L., Keesing, F. & Virani, M.Z. (2012). Dropping dead: causes and consequences of vulture population declines worldwide. Annals of the New York Academy of Sciences, 1249, 57–71.CrossRefGoogle ScholarPubMed

Pande, S.A., Deshpande, P., Mahabal, A.S. & Sharma, R.M. (2013). Distribution of the Steppe Eagle in the Indian subcontinent: review of records from 1882 to 2013 AD. Raptors Conservation, 27, 180–190.Google Scholar

Pande, S., Pawashe, A., Sant, N., Mahabal, A. & Dahanukar, N. (2010). Metropolitan garbage dumps: possible winter migratory raptor monitoring stations in peninsular India. Journal of Threatened Taxa, 2, 1214–1218.Google Scholar

Potapov, E., Fox, N.C., Sumya, D. & Gombobaatar, B. (2002). Migration studies of the Saker Falcon. Falco, 19, 3–4.Google Scholar

Riesing, M.J., Kruckenhauser, L., Gamauf, A. & Haring, E. (2003). Molecular phylogeny of the genus Buteo (Aves: Accipitridae) based on mitochondrial marker sequences. Molecular Phylogenetics and Evolution, 27, 328–342.Google Scholar

Roberts, T.J. (1991). The Birds of Pakistan. Karachi: Oxford University Press.Google Scholar

Robson, C.R. (1986). Recent observations of birds in Xizang and Quinghai provinces, China. Forktail, 2, 67–82.Google Scholar

Scully, L. (1881). A contribution to the ornithology of Gilgit. Ibis, 23, 415–453.Google Scholar

Sharma, P. & Sundar, K.S.G. (2009). Counts of Steppe Eagles Aquila nipalensis at a carcass dump in Jorbeer, Rajasthan, India. Forktail, 25, 161–163.Google Scholar

Singh, G. (1961). The eastern steppe eagle [Aquila nipalensis (Hodgson)] on the south col of Everest. Journal of the Bombay Natural History Society, 58, 270.Google Scholar

Spaar, R. & Bruderer, B. (1996). Soaring migration of Steppe Eagles Aquila nipalensis in southern Israel: flight behavior under various wind and thermal conditions. Journal of Avian Biology, 27, 289–301.Google Scholar

Subedi, T. (2015). East to west migration of Steppe Eagle Aquila nipalensis and other raptors in Nepal: abundance, timing and age class determination. Available from: www.nationalbirdsofpreytrust.net/reports/Subedi.pdf [25 April 2015].Google Scholar

Subedi, T. & DeCandido, R. (2013). Raptor migration summary for autumn 2012, central Nepal. Available from: www.dvoc.org/MeetingsPrograms/MeetingsPrograms2014/Resources/2012_FinalReport_Nepal.pdf. [25 April 2015].Google Scholar

Subedi, T. & DeCandido, R. (2014). Raptor migration summary for autumn 2013, central Nepal. Available from: www.birdsofnepal.org/2013.FinalReport.Nepal.pdf [25 April 2015].Google Scholar

Terrauble, J., Mougeot, F., Cornulier, T., Verma, A., Gavrilov, A. & Arroyo, B. (2012). Broad wintering range and intercontinental migratory divide within a core population of the near-threatened pallid harrier. Diversity and Distribution, 18, 401–409.Google Scholar

Thiollay, J. M. (1979). La migation des grues a travers l’Himalaya et la prédation par les aigles royaux. Alauda, 47, 83–92.Google Scholar

Verma, A. (2007). Harriers in India: A Field Guide. Dehradun: Wildlife Institute of India.Google Scholar

Verma, A. & Prakash, V. (2007).Winter roost habitat use by Eurasian Marsh Harriers Circus aeruginosus in and around Keoladeo National Park, Bharatpur, Rajasthan, India. Forktail, 23, 17–21.Google Scholar

Zalles, J.I. & Bildstein, K.L. (2000). Raptor Watch: A Global Directory of Raptor Migration Sites. Cambridge and Kempton, PA: BirdLife International.Google Scholar