Nepal has extremes of climate varying from tropical in the lowlands to arctic in the high peaks. With its diverse landscapes from flat lands of Terai, hills in the middle and mountains in the north, Nepal avifauna is highly diverse and a total of 208 Mammals, 123 Reptiles, 55 Amphibians, 230 Freshwater fish, 651 Butterfly species and 894 species of birds are recorded till including resident, winter visitor, summer visitor and passage migrant birds which is 9.3% of total birds in the world.