G. R. Gray, 1844,
Until recently was considered conspecific with G. indicus, but differs on several accounts#R#R. Has black head and narrow neck vs dark grey head and thicker, whitish-grizzled grey neck (2); dark vs pale cere, with dark vs yellow bill and claws (3); much narrower fringes on tertials and greater coverts so that contrast with primaries on folded wing much weaker (2); mottled vs clear rump (ns); head apparently longer (135–145 mm vs 126–131 mm#R); split supported by molecular evidence#R. Monotypic.
Lower Himalayas, from NW India (Haryana)#R through Nepal to Assam and N & E Myanmar; also S Laos and Cambodia; formerly more widespread in Indochina and N Malay Peninsula.
Food and feeding
Status and conservation
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