Falco sacer, Gm.
10. :- Jerdon's Birds of India, Vol. I, p. 29; Murray's Vertebrate Zoology of Sind, p. 66; Hume's Scrap Book, p. 62.
THE SAKER. Chargh, Hin.
Length, 19.81; wing, 15; tail, 9.2 ; tarsus, 2.13 ; bill from gape, 1.42.
Length, 22 ; wing, 15.5 ; tail, 10.75 ; tarsus, 2.13 ; bill from gape, 1.45.
Young bird with the top of the head yellowish-white, brown streaked; upper parts brown, with slight pale edgings to some of the feathers; beneath white, with large oval brown spots; legs and feet pale bluish; bill and cere bluish-black at tip. The adult has the upper parts rather pale slaty-brown, almost slaty in old birds ; cheek-stripe indistinct; top of the head reddish-ash color with fine black streaks ; chin white ; breast and lower parts white, with oblong, slaty spots ; cere greenish-white; feet lemon-yellow.
The Saker Falcon or Cherrug has only been obtained from Sind, where it is stated to be not common and only occurring in the cold weather. Those obtained were all in the immature phase.