author(s)
Rakesh Kumar, Manu Manjula and Manish Bhardwaj

abstract
The current study presents findings on the occurrence of partial albinism (leucism) in a bird species, Red-vented Bulbul Pycnonotus cafer (Linnaeus, 1766) in the Rajgir Wildlife Sanctuary located in the Nalanda district of Bihar, India. Various anomalies in color patterns result in conditions such as Albinism, Erythrism, Melanism, Xanthism, and Schizochromism. These conditions are characterized by alterations in pigmentation concentration and occurrence patterns in living organisms. Leucism is a biological condition characterized by the impairment of melanin production in cells. We recorded the individual a total of eight times along with a normal individual on most occasions around the same locality while continuing the surveys for the next 4 months.