LARIDE. 615 
eggs are placed on the shingle above ligh-water 
mark, where the full power of the sun falls, and the 
other that the nests have been found occupying the 
pinnacles of rocks and the projecting ledges of clifis 
on the sea-shore. 
“The adult bird has the bill yellowish white, the 
angle of the lower mandible reddish orange ; irides 
straw-yellow; all the plumage nearly white, but with 
a tinge of skim-milk-blue over the back and wing- 
coverts; primaries white; the legs and feet are flesh- 
colour.” By the peculiarity of the markings of the 
wing-coverts and primaries, the present species and 
the smaller, but equally rare, Iceland Gull may be 
immediately distinguished from any of our more 
common Gulls, all of which have more or less black 
or dark dusky brown on the longer quill-feathers. 
“The young bird has the bill pale brown at the 
base, the point dark horn-colour; irides dark; the 
head, neck, back and wing-coverts a mixture of pale 
ash-brown and dull white; scapulars and tertials 
transversely barred with pale brown and tipped with 
- greyish white ; primary and secondary quills uniform 
pale yellowish grey; upper and under tail-coverts 
dull white, barred with pale brown ; the tail-feathers 
uniform yellowish brown; the wings only reaching 
to the end of the tail; the chin, throat and breast 
dull white, mottled with pale brown; the belly more 
uniform in colour and greyish brown; legs and feet 
livid-brown.” These descriptions are from Yarrell. 
3G2 
