Cerchneis vespertina

Cerchneis vespertina, Lin.

19. :- Jerdon's Birds of India, Vol. I, p. 41. 19 bis. :- Butler, Deccan; Stray Feathers, Vol. IX, p. 371; Hume's Scrap Book, p. 106.

THE RED-LEGGED FALCON.

Length, 11; wing, 8.75.

Length, 11.5; wing, 9.25 ; expanse, 27; tail, 5. Bill fleshy-red, with a dusky tip ; cere and legs deep orange-red ; claws fleshy; orbitar skin orange-yellow.

Young bird: above dark slaty-grey, some of the feathers centred and tipped darker; tail light grey, obsoletely barred; ocular region and cheek-stripe nearly black; narrow frontal band, supercilium, lores, ear-feathers, and sides of neck and throat white; breast and abdomen rusty-white, with blackish-brown marks, longitudinal on the breast, heart-shaped on the sides, and arrow-like on the centre of the abdomen ; vent, under tail-coverts, and thigh-coverts pale unspotted rusty.

The adult male has the whole upper' plumage unspotted ashy, pale ashy beneath; chin and throat whitish; wings dusky-black ; thigh-coverts, and under tail-coverts, bright rusty-red.

Dr. Jerdon remarks that the Red-legged Falcon is not common in India, but that he has killed it in Central India ; it is nearly certain that he mistook it for 19 bis, Cerchneis amurensis, Radde. This latter Major Butler procured at Belgaum. The points of difference are as follows: :-

VESPERTINA. AMURENSIS.

ADULT .
Under wing-coverts and axillaries.
Bluish-grey. Pure white.
Breast.
Bluish-grey. Grey.
ADULT. Under surface.

Rufous, either uniform or with slight remains of blackish shaft lines.

Creamy-white; the breast broadly streaked and the flanks barred with black; abdomen, thighs, and under tail-coverts uniform pale rufous.

Juv. Head.

Rufous with narrow shaft lines of black; forehead whitish; under surface of body buff, streaked down the centres of the feathers with brown ; no bars on the flanks; tail bluish.

Dark bluish, with black shaft streaks; forehead fulvous ; un¬der surface of body buff, broadly streaked with black on the chest and barred on the flanks with the same color; tail bluish.

BookTitle: 
Handbook to the Birds of the Bombay Presidency
Reference: 
Barnes, Henry Edwin. Handbook to the birds of the Bombay Presidency, 1885.
Title in Book: 
Cerchneis vespertina
Spp Author: 
Lin.
Book Author: 
Barnes, H. Edwin
Year: 
1885
Page No: 
21
Common name: 
Red Legged Falcon
M_ID: 
11311
M_CN: 
Red-footed Falcon
M_SN: 
Falco vespertinus
Term name: 
id: 
11189

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