Inskipp C., Baral H. S., Phuyal S., Bhatt T. R., Khatiwada M., Inskipp, T, Khatiwada A., Gurung S., Singh P. B., Murray L., Poudyal L. and Amin R. (2016) The status of Nepal’s Birds: The national red list series. Zoological Society of London, UK.
The full publication (six volumes as pdfs) can be accessed here. The assessments can also be found on the Himalayan Nature website, where you can easily search for individual species.
Volume 1: Introduction, Summary Statistics, Galliformes, Anserifores, Podicipediformes, Ciconiiformes, Pelicaniformes, Falconiformes
Volume 2: Gruiformes, Charadriiformes, Columbiformes, Psittaciformes, Cuculiformes, Strigiformes
Volume 3: Caprimulgiformes, Apodiformes, Trogoniformes, Coraciiformes, Piciformes, Passeriformes
Volume 4: Passeriformes cont.
Volume 5: Passeriformes cont.
Volume 6: Passeriformes cont., Appendices