Genus AQUILA

Genus AQUILA.

Aquila Brisson, Orm, i, p. 419 (1760).

Type, Aquila chrysaeas Linn.

The genus Aquila contains the true Eagles, large and powerful birds but varying greatly in courage and never competing in this respect with some of our other tropical Eagles of the genera Lophotriorchis, Spizaetus, etc.

The bill is strong, rather long and curved from the cere, the margin of the upper mandibles straight or with a very slight festoon ; wings long, the fourth or fifth quill longest, the first generally about equal to the eighth; tail moderate, slightly rounded or nearly even; tarsus feathered to the toes: claws curved, strong and sharp, the hind toe and claw especially powerful.

The genus is found throughout Europe, Asia and North America and is represented in the Indian Empire by six species only, Aquila fulvescens of Brooks being now generally accepted as being the same as Aquila clanga.

Key to Species*

A.Nostril elliptical or ear-shaped,higher than broad,
A.Claws very large, hind claw over 50 mm……………A. chrysaetos, p. 68.
B.Claws moderate, hind claw under 50 mm.
a1. Wing, over 530 mm., over 600 mm.
a2. Plumage deep brown ; crown and nape tawny............... A. heliaca ad., p, 69.
b2. Plumage all deep umber-brown, or a pale patch on the nape onl………..A. nipalensis ad. p. 70.
c3. Lower plumage striated............... A. heliaca juv. p. 69.
d3. Lower plumage not striated; greater wing-coverts and inner secondaries tipped paler............... A. nipalensis juv., p. 70.
b1. Wing, under 530 mm under 575 mm............... A. rapax, p. 71.
B.Nostril round, as high as broad.
c1. Wing, over 540 mm............... A. clanga, p. 74.
d1. Wing, under 510 mm................A. pomarina, p. 75.

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 AQUILA
Book Author: 
Edward Charles Stuart Baker
Year: 
1928
Page No: 
67
M_ID: 
2775
M_SN: 
Aquila
Volume: 
Vol. 5
Term name: 
id: 
4349

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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