FULMAR PETREL. 
183 
rius^ than of a gull; but its manner of Avalking, and its 
posture on land or icebergs is ungainly, owing to the posi¬ 
tion of its legs ; these bend very short at the tibia, the feet 
are therefore greatly brought forward. 
The measurements of this Petrel are as follows :—Entire 
length nineteen inches; the wing thirteen inches ; the tarsi 
two inches two lines ; middle and outer toe two inches eleven 
lines ; the hind toe is a spur only ; the beak one inch six to 
seven lines. 
The adult bird has the head, neck, breast, belly, vent, and 
under tail-coverts white ; the upper plumage pale bluish ash; 
the tail the same, with white edges to each feather; the 
quill-feathers are dusky black; the legs and feet are ochreous 
yellow ; the beak pale ochreous yellow; the tube on the 
upper mandible a deeper tint of the same colour; the eyes 
are pale yellow. 
The young bird has the eyes pale dusky ; all the plumage 
bluish grey, of a deeper tint than in the adult, with paler 
edges to all the feathers; the chin, throat, and upper part of 
the breast are white ; before the eye is a black spot. 
The egg figured 316 is that of the Fulmar Petrel. 
R 
