Among the earlier papers on the birds of Namdapha was published in 1990. The park has about 425 bird species with many more to be recorded from work in the higher areas. There are five species of hornbills recorded from the area. Several species of rare wren-babblers have been recorded in Namdapha. Other bird groups include laughing thrushes, parrotbills, fulvettas, shrike babblers and scimitar babblers. The snowythroated babbler is a rare species of babbler found only in the Patkai and Mishmi Hills and nearby areas in Northern Myanmar, is found in Namdapha. Other rare, restricted range or globally endangered species include the rufous-necked hornbill, green cochoa, purple cochoa, beautiful nuthatch, Ward's trogon, ruddy kingfisher, blue-eared kingfisher, white-tailed fish eagle, Eurasian hobby, pied falconet, white-winged wood duck, Himalayan wood-owl, rufous-throated hill-partridge, and whitecheeked hill partridge. Several leaf warblers and migrants such as amur falcon and several thrushes can be seen here. The first mid-winter waterfowl census in Namdapha was conducted in 1994 when species such as the white-bellied heron, a critically endangered bird was recorded for the first time.