The highest altitude on this trek is 2765 m. Phulchowki at 2760m is the highest of the mountains encircling the Kathmandu valley and provides an ideal introduction to the birds of Nepal. Regularly recorded resident species include Besra, Black Eagle, Mountain Hawk-Eagle, Kalij Pheasant, Common Hill Partridge, Ashy Woodpigeon, Wedge-tailed Green Pigeon, Mountain Scops Owl, Collared Owlet, Golden-throated Barbet, Speckled Piculet, Crimson-breasted Pied and Rufous-bellied Pied Woodpeckers, Grey-chinned Minivet, Striated Bulbul, Orange-bellied Leafbird, Spotted Forktail, Chestnut-headed and grey-bellied Tesias, Chestnut-crowned and black faced Warblers, Rufous-bellied Niltava, Lesser Scaly-breasted Wren Babbler, Streak-breasted Scimitar-Babbler, Grey-throated and Spiny Babblers, White-crested, striated, Rufous-chinned and grey-sided Laughing thrushes, Red-billed Leiothrix, Cuttia, White-browed Green and Black-eared Shrike-Babblers, Hoary Barwing, Blue-winged Minla, Nepal Fulvetta, Yellow-browed Tit, Brown-throated Treecreeper, Black-throated Sunbird, Maroon Oriole, Eurasian and Lancelated Jays, Red-billed Blue Magpie and Brown Bullfinch . A further 55 species have been known to visit the area as migratory or occasional visitors. Phulchowki's forests are also very rich in flora and butterflies. Mammals include Leopard, Yellow-throated Marten and Orange-bellied Squirrel.