Rare mutation of black-winged Stilt spotted in NTPC Bilaspur

 

 

In an extraordinary discovery that has thrilled the birding community, three local bird enthusiasts — Rahul Gupta, Ratnesh Gupta, and Dr Himanshu Gupta — documented a rare brown mutation of the Black-winged Stilt (Himantopus himantopus) at the NTPC wetlands in Bilaspur. Significantly, Pratik Thakur played a key role in identifying the morph, validating the record, and writing the research paper, which has now been published in the Journal of Indian Birds (Volume 21, No. 4). The Black-winged Stilt is best known for its striking black-and-white plumage and long, slender red legs. However, this individual displayed unusual brown-toned feathers — a rare mutation, and the only such documented case from Southeast Asia.

 

Ornithologists note that such plumage mutations arise from genetic variations affecting pigmentation, producing conditions like: Albinism, which is a complete absence of melanin, giving birds white plumage and reddish eyes. Leucism is a partial pigment loss, leading to pale or patchy feathers with normal eyes. Melanism means excess dark pigmentation, turning normally lighter birds much darker. Brown/Color Morph Mutations shows shifts in feather pigments, creating atypical tones such as the brown morph of the Black-winged Stilt observed here. “These rare mutations highlight the fascinating role of genetics and environment in shaping wildlife,” the birdwatchers explained. While visually striking, such traits can influence a bird’s camouflage, survival, or even social behavior. The trio of bird lovers, who have been passionately documenting avian life in Central India for over a decade, have previously contributed several rare records.

 

Through photographs, videos, and social media posts, they actively spread awareness about biodiversity and conservation. “This sighting proves how rich and diverse our wetlands are,” said Rahul Gupta. “Every unusual discovery reminds us why protecting habitats is essential.” With its formal recognition in a peer-reviewed journal, the finding has placed NTPC Bilaspur wetlands on the national map as a key site for avian biodiversity, stressing the importance of preserving such habitats for future generations. The study was conducted by Dr. Himanshu Gupta, Rahul Gupta, Pratik Thakur, and Ratnesh Gupta, adding valuable insight to India’s growing database of avian colour aberrations.