FALCON. 91 



34 .-NORTHERN FALCON. 



Falco hyemalis, Fnd. Orn. i, p. 35, Gm. Lin. i, 274. Baud. ii. 110. Amer. Orn. iv. 



pi. 35. f, 1. 

 La Base d'Hiver, Vieill. Am. p. 35. pi. 7. 



Winter Falcon, Arct. Zool. ii. No. 107. Shaw's Zool. vii. 153. 

 Northern Falcon, Gen. Spt. i, p. 79. Id. SuTp. ii. p. 39. 



LENGTH 18 in. to 20 in. breadth 41 in. ; bill dark horn-colour; 

 irides reddish ; plumage above deep lead-colour, edges of the feathers 

 very dark : crown most so ; on the hindhead a slight mixture of 

 white; beneath ferruginous brown, with the appearance of inter- 

 rupted bars of white, produced from the feathers being ferruginous, 

 with two or three white spots on each side of the shaft, which is 

 brown; tail deep lead or ash, crossed with four bars of a deeper 

 colour, the outer one more brown than the rest ; tips of all white ; 

 between the dark bars beneath nearly white, the outer feather plain 

 on the outer web ; under tail coverts white ; legs pretty long, and 

 yellowish ; the A\dngs reach beyond the middle of the tail. 



Inhabits some parts of North America ; one of these presented 

 to me, was brought from Hudson's Bay ; destroys many frogs, and 

 frequently seen in moist meadows ; comes in November, and departs 

 late in March. 



A. — Falco hyemalis, Ind. Orn. i. p. 35. 78. var. 



Faucon a croupion blanc, Daud.W. p. 110. 78. Vieill. Am. '\. p. 36, pi. 8. 

 L'Epervier brun a sourcils blancs, Voy. d'Azara, iii. No, 25 ? 

 Northern Falcon, Ge7i, Syn. i. p. 79. var. 



This is 16 in. long; bill brown; cere greenish; irides yellow; 

 head ash-colour, each feather brownish in the middle, and ferruginous 



N2 



