Genus SPIZAETUS

Bill short, high at the base ; culmen compressed, much curved, a prominent festoon to the margin of the upper mandible; nostril rounded; wings short and rounded, 5th quill longest, the primaries exceeding the secondaries by less than the length of the tarsus in the closed wing. Tail rather long, nearly square. Tarsus long, slender, feathered throughout; toes large but not long, unequal, outer toe without claw longer than inner toe similarly measured; claws strong, unequal, well curved, hind claw largest. A crest generally present.

This is a forest genus found in America and Africa as well as throughout the Oriental region. The Oriental forms are distinguished by some writers as Limnaetus, but they only differ from the African and American species in having slightly longer wings. Several Indian kinds have been described, of which I distinguish five.

Key to the Species.

a. Feathering of tarsus does not extend to division of toes.
a1. A distinct crest, 4-6 long, always present………………………S. cirrhatus, p. 349.
b1. No crest, or a rudimentary one………………………S. limnaetus, p. 351.
b. Feathers extend on to basal portion of middle toe.
c1. Large : wing 17-18.5.
a2. White bands on abdominal feathers interrupted at shafts………………………S. nepalensis, p. 352.
b2. White bands go completely across abdo-
minal feathers………………………S. kelaarti, p. 354.
d1. Small: wing about 9.5………………………S. albiniger, p. 354.

BookTitle: 
The Fauna Of British India including Ceylon and Burma
Reference: 
Blanford, William Thomas, ed. The Fauna of British India: Including Ceylon and Burma. Vol.3 1895.
Title in Book: 
Genus SPIZAETUS
Book Author: 
William Thomas Blanford
Year: 
1895
Page No: 
349
M_ID: 
2722
M_SN: 
Nisaetus
Volume: 
Vol. 3
Term name: 
id: 
1705

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