Suya Hodgs., As lies, xix, p. 183 (183(0 Type, Suya crinigera Hodgs.
The genus Suya comprises three Indian species, with greatly developed tails, which are nearly, or fully, twice the length of the wing. The Spring moult is complete and is accompanied by a change in colour and sometimes by a difference in the length of the tail. They have two strong rictal bristles on either side of the bill but no supplementary hairs. The tail is greatly graduated, the outermost feather either reaching to, or falling short of, the middle of the central feathers.
Key to Species.
A. Chin and throat white or fulvous- white.
a. Upper plumage boldly streaked. a1. Sides of chin and throat not
mottled or barred S. crinigera, aestiv., p 518.
b1. Sides of chin and throat mottled
or barred with black S crinigera, hiem., p. 519.
b Upper plumage very faintly streaked.
c1.. Crown and back of one colour.. . S. atrogularis, hiem., p. 523.
d1.. Crown darker than back S. superciliaris, p. 524.
B. Chin and throat deep black S. atrogularis, aestiv.. p. 523.