84 
IVORY GULL. 
the width of three feet three inches and a half when extended, 
greater and lesser wing coverts, primaries, secondaries, tertiaries, 
greater and lesser under wing coverts, tail, and tail coverts, 
pure white. The legs, which are feathered nearly to the knee 
joint, and the toes, black, the latter very rough beneath; the 
webs are also black, very rough beneath, and deeply scalloped. 
In the young the bill is olive yellow; iris, dusky; a greyish 
black bar, more or less complete according to age, extends 
from the bill to the eye. The head, crown, neck on the back, 
and nape, have more or less greyish brown specks and spots; 
chin and throat, white; back and greater and lesser wing 
coverts, white, studded with well-defined dusky brown spots. 
The primaries are tipped with dusky brown, the first feather 
retaining the mark the longest. The tail has a uniform dusky 
brown line across the end; upper tail coverts, white, with 
dusky brown spots at the tips of the feathers; the legs, which 
are short, and the toes, dull blackish; webs, dull blackish. 
The portrait of this bird is from a drawing by J. Gatcombe, 
Esq., of Wyndham Place, Plymouth. 
