GENUS, Calobates, Kaup.
Bill more slender than in motacilla; wings slightly shorter, and tertials less elongated ; tarsus shorter and pale colored; hind-toe short, with the claw a little longer and moderately curved; otherwise as in motacilla.
Handbook to the Birds of the Bombay Presidency
Barnes, Henry Edwin. Handbook to the birds of the Bombay Presidency, 1885.
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