e eggs. The eggs have the same variations in
color and markings as the Glaucus Gull. Size 3.00 x 2.10.
Data.--Herschel Is., Alaska, July 1, 1900. Nest made of seaweed and
grass; placed on the ground. Three eggs. Collector, Rev. I. O. Stringer.

43. ICELAND GULL. _Larus leucopterus._

Range.--Arctic regions, south in winter to the Middle States.

This Gull in appearance is precisely like the two preceding ones but is
considerably smaller; 24 inches in length. A very common bird in the
north, breeding in colonies of thousands on many of the islands. It is
regarded as one of the most common of the larger Gulls in Bering Sea and
also nests commonly in Hudson Bay and Greenland, as well as in the
Eastern Hemisphere. They nest indifferently on high rocky cliffs or on
low sandy islands. Except when the eggs are laid in a sandy depression
in the soil, quite bulky nests are made of seaweed and moss. The eggs
are laid about the first of June; they number two to three and have a
ground color of brownish or greenish brown and are blotched with umber.
Size 2.80 x 1.83. Data.--Mackenzie Bay, Arctic America. June 18, 1899.
Nest made of seaweed and grass on an island in the bay.

[Illustration: White.]
[Illustration: Greenish brown.]
[Illustration: right hand margin.]

Page 42

44. GLAUCOUS-WINGED GULL. _Larus glaucescens_.

Range.--North Pacific coast, breeding from British Columbia northwards
and wintering from the same country to southern California.

This Gull is very like the preceding except that the primaries are the
same color as the mantle, and are tipped with white. Length about 27
inches. Not so northerly distributed a bird as the previous ones, and
consequently better known. They breed in large numbers both on the high
rocky cliffs of the islands along the coast and on the low sandy islands
of the Aleutian Chain. On Copper Island they breed on the inaccessible
cliffs overhanging the water. As in the case of the Iceland Gull, when
the nests are on the cliffs, a large nest of seaweed is made, whereas if
they are on the ground, especially in sandy places no attempt is made at
nest-building. The eggs have a greenish brown ground color and dark
brown spots. Size 2.75 x 2.05. Data.--West Coast of Vancouver Island.
June 20, 1896. Three eggs; nest made of seaweed. Located on a low ledge.
Collector, Dr. Newcombe.

45. KUMLIEN'S GULL. _Larus Kumlieni_.

Range.--North Atlantic coast, breeding in Cumberland Sound and win