Subfamily PERDICINAE

Subfamily PERDICINAE.

In the Perdicinae, or Partridges, the moult of the tail-feathers commences with the central pair followed by each succeeding pair to the outermost. The other differences between this Subfamily and the Phasianinae have already been dealt with in the description of that Subfamily and need not be repeated here. Unless great importance is placed on the moult of the rectrices, the super-generic differences are of but trivial importance and, but for the convenience of splitting so large a Family as the Phasianidae into two groups, I should not accept them as sufficing for the differentiation of the two groups.

Key to Genera.

A.First primary shorter than tenth.
a. Tail-feathers eighteen.............. TRAGOPAN, p, 342.
b. Tail-feathers fourteen.
a1. Wing over 215 mm.; plumage of male with some green and crimson………ITHAGINIS, p. 351.
b1. Wing under 215 mm.; plumage with no green or crimson in male.
a2. Sexes different; spurs on tarsi of both sexes……………..GALLOPERDIX, p. 357.
b2. Sexes alike; no spurs cm tarsi of either sex……………BAMBUSICOLA, p. 365.
c.Tail-feathers ten………………OPHRYSIA, p. 366.
B.First primary equal to or longer than tenth.
d.Size small; wing under 120 mm.
c1. Tail-feathers eight……………….EXCALFACTORIA, p. 369.
d1. Tail-feathers ten to twelve.
c2. First primary larger than fourth…………..COTURNIX, p. 372.
d2. First primary between seventh and tenth…………..PERDICULA, p. 376.
e2. Firtit primary equal to tenth…………..CRYPTOPLECTRON, p. 380.
e. Size moderate ; wing over 120 mm.
e1. Tail-feathers twelve.
f2. Upper parts green; male crested…………..ROLLULUS, p. 367.
g2. Upper parts pale grey or isabelline…………..AMMOPERDIX, p. 405.
h2. Upper parts mostly rufous-brown…………..RHIZOTHERA, p. 400.
f1. Tail-feathers fourteen.
i2. Tarsus naked.
a3. Tail less than half length of wing.
a4. Hind toe with a claw; no spurs.
a3. No white axillary tuft…………..ARBOROPHILA, p. 385.
b3. A white axillary tuft…………..TROPICOPERDIX, p. 397.
b4. Hind claw rudimentary; spurs present…………..CALOPERDIX, p. 399.
b3. Tail more than half wing,
c4. Flanks boldly barred…………..ALECTORIS, p. 401.
d4. Flanks not barred…………..FRANCOLINUS, p. 407.
j2. Tarsus half clad with feathers…………..LERWA, p. 432.
g1. Tail-feathers sixteen to eighteen ;wing under 180 mm…………..PERDIX, p. 422.
h1. Tail twenty to twenty - two feathers : wing over 250 mm…………..TETRAOGALLUS, p, 426.

BookTitle: 
The Fauna Of British India, Including Ceylon And Burma-birds(second Edition)
Reference: 
Baker, EC S (1922–1930) The fauna of British India, including Ceylon and Burma. Second edition. vol.5 1928.
Title in Book: 
Subfamily PERDICINAE
Book Author: 
Edward Charles Stuart Baker
Year: 
1928
Page No: 
340
Volume: 
Vol. 5
id: 
4650

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith