GREY-HEADED BERNICLE. 61 



colour at the hind head : the feathers of the forehead 

 produced forward on each side of the upper mandible : 

 the lower part of the neck and breast white, marked 

 across with numerous narrow black bars : the upper 

 part of the back pale grey, barred in the same 

 manner with black : the lower part of the back and 

 scapulars dusky ash : wing-coverts white : at the bend 

 of the wing a blunt knob : secondary quills dusky, 

 with pale edges : prime quills and tail black : the 

 middle of the belly, thighs, and vent white : over the 

 thighs barred dusky and white : legs black. This was 

 met with on Staaten Island, in January." Latham. 

 The last four species greatly resemble each other : 

 it is extremely probable that future observations may 

 prove them to be mere variations in plumage, de- 

 pending upon age or sex : they all inhabit the same 



GREY-HEADED BERMCI.i . 



(Bernicla cana.) 



BE.ferrngineo-rufa, capite collogue griseis, specula alarum -ciridi, 



humeris albis. 

 Rusty-red Bernicle with the head and neck grey, wiug speculum 



green, shoulders white. 



Anas cana. Gmel. Syst. Nat. 1.510. Lath. Ind. Orn. 2. 840. 

 L'Oie sauvage a tete grise de Corotnandel. Sonncr. Voy. Ind. 



2.220. 

 Grey-headed Goose. Lath. Gen. Syn. 6. 458. Lath. Syn, Sup. 



273. 



