CATALOGUE OF CANADIAN BIRDS. 33 
BREEDING Hapits.—This bird reaches the Prybiloft Islands 
about May gth for the pupose of breeding. It uses dry grass 
and moss cemented with mud which it gathers by the fresh 
water pools and ponds scattered over the islands. The nest is 
solidly and neatly put up, both parents working. The nests are 
placed on inaccessible shelves and points of mural rocks and can 
scarcely be reached except a person be lowered by a rope. Two 
eggs are the usual number, though occasionally three will be 
found in the nest. The eggs are the size and shape of hens’ eggs, 
but covered with a dark gray ground spotted and blotched with 
sepia spots. (E/hoitt.) 
MUSEUM SPECIMENS. 
One fine egg taken by Mr. J. M. Macoun on St. Paul Island, 
Behring Sea, Sept. 16th, 1896. Seven eggs, some of which are 
of this species and some of the last, were also brought from 
St. Paul Island by Mr. Macoun, but as they were procured from 
natives their identity is uncertain. 
XXI. LARUS Linnazvs. 1758. 
42. Glaucous Gull. Burgomaster. 
Larus glaucus BRUNN. 1764. 
The most common large gull in Greenland, breeds with the 
other gulls. (Arct. Man.) Not rare on Hudson Strait; breeds 
plentifully on the eastern and southern coasts of Labrador. 
(Packard.) Common along the Atlantic coast from Greenland to 
Newfoundland. (Reeks.) Southward it is rare and only in winter. 
(Jones.) One shot in St. John harbour, N. B. (Chamberlain.) Com- 
mon in the river and gulf of St. Lawrence. (Dzonne ; Dr. Hall.) 
During the winter months this bird is not an infrequent visitor to 
Lake Ontario. It was shot at Toronto in 1884 and in 1889. (Mc- 
Ilwrath.) Abundant on Great Slave Lake. (Ross.) A great 
many of these gulls nest in Cumberland Gulf and are common in 
other places. (Kumelin.) Large numbers were found breeding 
on the ledges of high cliffs at Richmond Gulf, Hudson Bay, in 
July, 1898. (A. P. Low.) 
BREEDING NoteEs.—Altogether some twenty nests of this 
species were gathered, chiefly on sandy islets in the bays of 
Franklin and Liverpool; a few of these were also found on 
islands on the Lower Anderson. Fifteen of the nests contained 
29 
Pe) 
