Prinia Horsf., Trans. Linn. Soc, xiii, p. 164 (1850). Type, Prinia familiaris Horsf., Java.
The genus Prinia contains many species of Warblers, five of which occur within our limits. In appearance they merely differ from the birds of the genus Franklinia in having only ten tail-feathers instead of twelve.
They have a complete Spring moult, accompanied in some instances with so great a change of colour and in the structure of the tail that no little confusion has arisen as to the actual number of species in existence. Most of the species again are found over a very wide area and many geographical races occur.
Key to Species.
A. Upper plumage streaked………P. gracilis, p. 526.
B Upper plumage not streaked.
a. Abdomen yellow …………..P. flaviventris, p. 528.
b. Abdomen fulvous or buff. a1. Bill black.
a2. Upper plumage ashy P. socialis, aestiv., p. 530.
b2. Upper plumage rufous-brown………P. socialis, hyem., p. 530.
c2 Upper plumage earthy-brown.
a3. Outer tail-feathers white P. sylvatica, aest., p. 532.
b3 . Outer tail-feathers pale brown……….P. inornata, aest., p. 534.
b1. Bill brown, lower mandible fleshy-brown.
d2. Upper plumage warm rufous-brown ………P. sylvatica, hyem., p. 532.
e2. . Upper plumage earthy - brown,
tinged greenish P. inornata, hyem., p. 534.