1. Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003, N‐1432 Ås, Norway
2. Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N‐1432 Ås, Norway
3. King Mahendra Trust for Nature Conservation, P.O. Box 3712, Kathmandu, Nepal