saker falcon (Falco cherrug) Falco sacer = Falco cherrug
Date between 1850 and 1883
Source John Gould, 1804-1881; Richard Bowdler Sharpe, 1847-1909: Birds of Asia., Volume 1, London
Author John Gould (1804–1881) & Henry Constantine Richter (1821–1902)  
Source: https://commons.wikimedia.org/wiki/File:BirdsAsiaJohnGoIGoul_0044.jpg
The saker falcon (Falco cherrug) is a large species of falcon. This species breeds from eastern Europe eastwards across Asia to Manchuria. It is mainly migratory except in the southernmost parts of its range, wintering in Ethiopia, the Arabian peninsula, northern Pakistan and western China.
