THE BEAN GOOSE. 67 
and base of the maxilla, and with a large oval 
nail of the same colour. The length two feet 
nine inches ; the head and neck yellowish brown, 
darkest on the crown and cheeks, and having a 
narrow list of white around the base of the bill. 
The colour of the neck gradually shading into dark 
brownish grey, on the back the feathers tipped 
with yellowish white, and having a shaded band 
of a darker tint separating the two colours ; the 
lower back and rump uniform greyish black, fol- 
lowed by the pure white upper tail-covers, which 
form a narrow crescented band, contrasting with 
the dark lower back and tail. The tail containing 
sixteen feathers of the same colour with the lower 
back, shortly tipped with white, and having a nar- 
row edging of the same colour on the outer web of 
each feather. The colour of the back is continued to 
the wings of a darker shade, with little light edging 
on the shoulders, but having the lesser covers with 
a broad white tip, and the dark tertials narrowly 
edged with that colour on their outer webs; the 
quills are black at the tips, grey towards the base, 
and with a broad white shaft ; greater covers black. 
Below the breast, the feathers shade from yellowish 
white to greyish white, and pure white on the vent 
and under tail-coverts, the sides and feathers cover- 
ing the thighs are similar to those on the back with 
pale tips. Logs and feet arc orange yellow. 
Another species, confounded with the last, but 
distinguished by the white nail of the bill, the dif- 
