BERNICLA BRENTA. 
Ber.—Cinerea, capite colloque nigro; hoc lateribus albo maculatis. | 
BRENT BERNICLE. 
| Ber. cinereous, with the head and neck black; the latter on the 
_ sides with a white patch. 
: IN. IN. 
DITOR ccasdsigae es 29 LOTR ss 0 Mis eracew.: OP Deu NBe 
TD aickyn Weekes is ivee 1 2-5ths. Middle toe ...... 2 
Ber.: head, neck, and breast black; on each side of the neck a 
_ patch of white ; back and wing coverts brown, with the edges of the 
feathers paler; below dirty white, with a yellow tinge; the margin 
of the feathers pure white; back and upper tail coverts black; neck 
and bill black. 
Berniela -Brentdisccsvrrerveceeces Steph. Sh. Zool. 12. 46. 
ARIS EOVRICIE:. ccecsi sweunessncen Linn. Syst. 1. 198. 
Gmel. Syst, 1. 518. 
Lath. Ind. Orn. 2. 844. 
PUGH OSE Crs scan daasetedsosens Penn, Arct. Zool. 2 N. 478. 
PC OVOUANE eas svn ckeacindeteattes Buff. Ois. 9. pl. 87. 
Inhabits the same countries with B. Leucopsis ; its nest is made of 
grass and sea-weed in morasses; it lays ten or twelve eggs, perfectly 
white. 
Like its congeners, it is easily domesticated. The trachea and 
inferior larynx is that of the typical geese, but slightly expanded 
below the glottis. 
BERNICLA LEUCOPSIS. 
Ber.—Cinerea, capite colloque atro; facie alba. 
COMMON BERNICLE. 
BER. cinereous, with the head and neck black; the face white. 
IN. IN. 
POUT rea nscivedseanve vac 25 TONS: ibs dacateses ant0ds 24 
12 LEB OG Se pe POPE B Middle toe .....sec0r0s A 
F 
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