SUL A. 
243 
loose feathers, springing nearly from the lino of the 
eyes, and bending forwards; in some specimens it 
is very ample, hut in others, shot at a similar period, 
it is very little developed ; there may he a slight 
difference in the sexes ; hut the crest is perhaps more 
incidental to age, or a very much developed state 
of plumage, than a decidedly seasonal or breed- 
ing adornment ; in some specimens, shot from the 
nest, and at the season of incubation, it consisted 
of two or three, and sometimes only a single elon- 
gated plume. "We have sometimes seen a few 
spots of the white liair-like feathers, which became 
so conspicuous on the neck of the last during the 
breeding time, appear also there in this bird ; the 
bill and feet are black, the basal skin of the former, 
and edges of the rictus, gamboge-yellow ; in the 
young birds, and before breeding time, the plumage 
is of different shades of brown, varying in intensity, 
the throat white. 
The remaining form of the Pelecanidte belonging 
to the British Fauna is that of the Solan Goose, 
or Gannet, and known under the title of 
Genus Sula, Brisson. — Generic characters . — Bill 
long, compressed near the point; maxilla curved 
at the tip, suleated for nearly the whole length, 
base with a hinge ; mandible straight, with a 
slight angle ; tomia irregularly broken, face 
naked; wings long andaccuminated; legs placed 
far behind, tarsi short; feet ample, four toes 
