Genus CERCHNEIS

Genus CERCHNEIS.

Cerchneis Boie, Isis, 1826, p. 976.

Type, Falco rupicolus Daud. South Africa.

This genus is now often lumped together with Erythropus in the genus Falco but it differs greatly from the birds of that genus not only in structure but in habits. The Kestrels are birds of less powerful flight, with weaker implements of prey in their feebler bills and feet and, as we should expect, are hawkers of insects, only tackling small birds and mammals of non-resisting species and these only exceptionally.

In Cerchneis the wing is short and rounded, the second and third primaries subequal; the tail is long and well graduated ; the feet are smaller and weaker than in Erythropus and, a fortiori, than in Falco ; the middle toe without claw equals two-thirds to three-quarters the length of the tarsus and the outer and inner toes are about the same in length.

Key to Species.

A.. Claws black ............... C. tinnunculus, p. 60.
B. Claws yellow............... C. naumanni, p. 65

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: 
Genus CERCHNEIS
Book Author: 
Edward Charles Stuart Baker
Year: 
1928
Page No: 
60
M_ID: 
11254
M_SN: 
Falco
Volume: 
Vol. 5
Term name: 
id: 
4340

Add new comment

CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Image CAPTCHA
Enter the characters shown in the image.
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith