saker falcon (Falco cherrug) English: « Falco sacer » = Falco cherrug (Saker Falcon) - egg
Français: « Falco sacer » = Falco cherrug (Faucon sacre) - œuf
Date	1860
Source	The Ibis, ser. 1, vol. 2
Author	William Chapman Hewitson  (1806–1878)  
Source: https://commons.wikimedia.org/wiki/File:Falco_cherrug_egg_1860.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.