Tetrax Forster, Synops. Cat. Brit, Birds, p. 20, 1817. Type by taut., Otis tetrax Linn.
The Fauna Of British India, Including Ceylon And Burma-birds. Synonymy(second Edition)
Baker, EC S (1922–1930) The fauna of British India, including Ceylon and Burma. Second edition. vol.8 1930.
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