Wing upstroke of Bateleur eagle
Bateleur eagle (Terathopius ecaudatus) in flapping flight. The wing upstroke reveals the silvery look of its underwing feathers lit by side lighting. The eagle owes its French name 'bateleur' (tumbler) from the habit of rocking its wings from side to side when gliding.
Digital image ID: Philippe_Rouquet_20160418_003595
Created: April 18, 2016
Author: Philippe Rouquet
© Philippe Rouquet
Digital image size: 16.0 Mpixels (45.8 MB uncompressed) - 4000x4000 pixels (13.3x13.3 in / 33.9x33.9 cm at 300 ppi)