Vigors, P. Z. S. 1831, p. 172. Type, Z. monticola.
The genus Zoothera contains two Indian species of Thrush which differ from all others of the Subfamily in having supplementary bristles extending over the nostrils, whilst the usual rictal bristles are numerous and long.
The sexes are alike and the under wing-coverts and axillaries of two colours, the colours of the former reversed in the latter. The bill is very long, powerful and strongly curved near the tip. The edges of the bill, though originally even, often become worn and serrated, probably from breaking the tiny snails, etc. on which these birds largely feed.
In many ways the five genera Turdus. Arceuthornis, Geocichla, Oreocincla, and Zoothera lead into one another, but each has a quite recognizable character by which it can be divided from the other groups or genera and such division should help students to work out their specimens.
Key to Species.
A. Upper plumage dark slaty-brown .; Z. monticola, p. 160.
B. Upper plumage rufous olive-brown Z. marginata p. 168.