284 
A GROUP OF GULLS. 
hnd they lay from two to four, seldom five, Large oval oggs, of an 
olivaceous or greyish colour, patched or spotted with dusky. The 
young, at first clothed with close variegated down, very soon walk, 
and readily take to the water ; but if not disturbed, generally remain 
about the nest until they are able to fly. 
The Great Black-backkd Gull {Lams marinus), 
sometimes called the Cobb, or Carrion Gull. 
The Lesser Black-backed Gull (L. fuscus), also 
known as the YelloAv-footed Gull. 
The Herring Gull {L. argentatus), sometimes called 
the Silvery Gull. 
'The Glaucus Gull (L. glauciis), otherwise the Bur- 
gomaster, or Iceland Gull. 
The White-winged Gull {L. leucopterus)^ also called 
the Lesser Iceland Gull. 
The Green-billed Gull {L. cams), also known as 
the Common Gull, Sea Maw, Mew, 6r Mall. 
We here have the British members of the genus Lams, 
the Gulls properly so called, which are birds of large or 
moderate size, with full bodies, moderately long and thick 
necks, and large heads, broadly ovate, and narrowed 
behind. 
GliEAT GULL. 
First on the list we have the Cobb, the largest, and per- 
haps the most beautiful, of a tribe of birds remarkably alike 
