ALCADE. jot 
be a distinct species, to which he gave the name of 
the “ Blackbilled Auk.” Bewick also mentions the 
“Blackbilled Auk” as distinct, but winds up his 
account of it with the following quotation from 
Latham :—“ This from its external marks should 
appear to be a different species from the Razorbill, 
but we are pretty certain it is no other than the 
young of that bird.” 
In the adult bird the bill is narrow at the ridges 
and flat at the sides, not so broad as that of the 
Puffin, but rather longer in proportion to the 
breadth. There is a distinct white streak across the 
bill; irides dark brown; there are two narrow streaks 
of white from the top of the upper mandible, one to 
each eye; the head, the back of the neck, and all the 
upper parts black; the tips of the secondary quills 
are white, making a white bar on the wing; the chin 
and front of the neck in summer are very dark sooty 
brown; the breast and under parts are white; legs, 
toes and webs black. In winter the sides of the face, 
chin and fore part of the neck are white, and there is 
no white line from the upper mandible to the eye. 
One specimen in my collection, shot by me off Ex- 
mouth on the 10th of April, wants the white lines 
from the bill to the eyes, but otherwise the summer 
plumage is beginning to return, the white on the fore 
part of the neck being much mixed with brown. A 
voung bird of the year, also shot by me at Exmouth, 
on the 22nd of November, has the bill much smaller, 
3B 3S 
