Genus CYORNIS

The females I place in the genus Cyornis fourteen species of Flycatchers in which the sexes are different, and which appear to be congeneric in structure, habits, and style of coloration.

of some of the species of this genus are amongst the most difficult of birds to discriminate, and they remained in great confusion till Sharpe brought them into order with the aid of Hodgson's types and drawings.

In Cyornis the bill is about half the length of the head, depressed, and rather broad at the base; the rictal bristles are moderate; the wing in most of the species is sharply pointed, and the first primary generally small; the tail is square or nearly so.

In this genus all the males are blue or black on the upper plumage, and the females brown or rufescent.

All the species are true Flycatchers, catching their prey on the wing or by running along branches.

Key to the Species.

a. Base of tail white.
a1. White on tail tending nearly to tips of feathers………………….C. cyaneus, p. 13.
b1. White on tail confined to base.
a2. Upper plumage blue.
a3. Breast orange-chestnut.
a4. No white frontal band………………….C. hodgsoni p. 14.
b4. A white frontal band………………….C. hyperythrus p. 15.
b3. Breast white, pale buff, or fulvous- grey, [p. 16.
c4. No white supercilium ………………….C. leucomelanurus
d4. A white supercilium………………….C. superciliaris p. 17.
b2. Upper plumage black ………………….C. melanoleucus p. 18.
b. No white on tail.
c1. Upper plumage blue.
c2. Crown and rump cobalt-blue, back dull blue.
c3. Axillaries and under wing-coverts white………………….C. sapphira p. 20.
d3. Axillaries and under wing-coverts chestnut………………….C. oatesi p. 20.
d2. Crown, rump, and back of the same blue.
e3. Whole lower plumage white………………….C. astigma p. 19.
f3. Chin, throat, and breast dark blue; abdomen white………………….C. pallidipes p. 22.
g3. Whole lower plumage pale blue………………….C. unicolor p. 22.
h3. Breast ferruginous or chestnut.
e4. Chin and throat blue………………….C. rubeculoides p. 23.
f4. Throat ferruginous like breast. of. First primary about half length of second; wing under 3…………………... C. tickelli, p. 25.
b5. First primary much shorter than half second; wing over 3………………….C. magnirostris , p. 26.
d1. Upper plumage brown or rufescent.
e2. Breast chestnut or ferruginous.
i3. First primary about half length of second; sides of head grey………………….C. pallidipes p. 22.
k3. First primary much shorter than half second; sides of head fulvous or rufous.
g4. Wing considerably under 3………………….C. rubeculoides p. 23.
h4. Wing over 3………………….C. magnirostris p. 26.
f2. No chestnut on breast.
l3. Wing considerably over 3.
i4. First primary much shorter than half second ; yellowish – buff patch on throat………………….C. oatesi p. 20.
k4. First primary about equal to half second; no patch on throat………………….C. unicolor P. 22.
m3. Wing considerably under 3. l4. Second primary equal to ninth; wing 2.3; tail 1.6………………….C. hyperythrus p. 15.
m4. Second primary shorter than the secondaries; wing 2.4; tail 2………………….C, leucomelanurus [p. 16.
n4. Second primary between the sixth and seventh or equal to seventh.
c5. Wing 2.8; tail 2.2………………….C. hodgsoni p. 14.
d5. Wing 2.3 or 2.4; tail 1.7 or 1.8.
a6. Chin, throat, and breast pale buff or sordid white.
a7. Upper tail-coverts and outer webs of tail-feathers suffused with blue………………….C. superciliaris p. 17.

b7. Upper tail-coverts and outer web3 of tail-feathers fulvous………………….C. astigma p. 19.
c7. Upper tail-coverts and outer webs of tail-fea¬thers bright ferruginous………………….C. melanoleucus p. 18.
b6. Chin, throat, and breast orange-chestnut………………….C. sapphira p. 20.

BookTitle: 
The Fauna Of British India including Ceylon and Burma
Reference: 
OATES EW. The Fauna of British India, including Ceylon and Burma. Vol.2 1890.
Title in Book: 
Genus CYORNIS
Book Author: 
Eugene William Oates, Edited by William Thomas Blanford
Year: 
1890
Page No: 
11
M_ID: 
27808
M_SN: 
Cyornis
Volume: 
Vol. 2
Term name: 
id: 
772

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