CATALOGUE OF CANADIAN BIRDS. 33 
paired the birds keep by themselves and early in June deposit 
their eggs in a depression on the mossy top of some knoll upon a 
rising ground. (WVedson.) 
Famity V. LARIDA#. GuLLs anp TERNs. 
XX, PAGOPHILA Kavp. 1829, 
39. Ivory Gull. 
Pagophila alba (GUNN.) COUES. 1897. 
A very rare periodical migrant on the northwest coast of New- 
foundland, Three shot in Parson pond, January 1867-68. 
(Reeks.) One specimen observed in Halifax harbour, prior to 
1869. (Jones.) Rare along the Nova Scotia coast. (Dowzs.) 
An immature bird shot at St, John; a winter visitant at Grand 
Manan, N.B. (Chamberlain.) Coast of Labrador. (Dionne.) Seen 
on the edge of the ice in Hudson bay, near Great Whale river, 
in spring and winter. Occasional birds of this species are seen 
in the early summer among the heavy ice on the Atlantic coast 
of Labrador and Hudson strait. A young specimen in full 
plumage was shot at Fullerton in the end of September. (A. P. 
Low.) Occasionally seen on Lake Ontario. I succeeded afte1 
two season’s work in obtaining a fine specimen of an adult male 
by getting the fishermen to attach a long line to the stern of 
their boat with a hook at the end baited with cisco. (Wcl/wraith.) 
There is reason to believe that this bird is probably a regular 
winter visitor to Lake Ontario. (/. H. Fleming.) 
Circumpolar: eggs obtained on Cape Krabbe lat. 77° 25’ N. 
(Arct. Man.) Often seen on Ellsemere island and probably breeds. 
(Z. Bay.) This beautiful gull frequents Davis strait, Baffin bay, 
and various parts of the northern shores of the American con- 
tinent, breeding in great numbers on the high perforated cliffs 
which form the extremity of Cape Parry, in lat. 70°. (Richardson.) 
A rare visitor at Point Barrow; only two being seen in the spring 
but more common in the autumn. (Myurdoch.) One specimen 
taken) at. Weaseslake,-.Cassiar,.. B.C. sby .Mri James* Porter, “in 
September, 1889. (/annin.) One specimen was shot at Lake 
Okanasan) inv November, 16907, by Mr: J. F..Studley.. Mr: A> C- 
Brooks also reports it from Okanagan. (Aermode.) Very common 
3 
