12 GEOLOGICAL SURVEY OF CANADA. 
coast of Bering strait from Golovina bay to Port Clarence. 
(Nelson.) 
9. Black-throated Loon. 
Gavia arcticus (LINN.) ALLEN. 1897. 
Occasional on the coast of Labrador but apparently common 
on the shores of Hudson bay, where they breed. 
Male and female, and young nearly full grown, shot on Not- 
tingham island, Hudson strait, August 28th, 1884. (R. Bell.) On 
the Barren Grounds below Cape Eskimo, August 4th to August 
13th, 1900, this species was abundant on the shallow ponds on the 
tundra where the young are raised. (Predle.) Very common in 
the waters of Roes Welcome, especially on the east side along 
Southampton island. Seen in the bays of Baffin island. Breeds 
abundantly on Southampton ; nests built on islands or along the 
swampy edges of ponds not far from the coast. Feeds in the sea. 
(A. P. Low.) Not common at Lake Mistassini, but a few breed. 
(J. M. Macoun.) Occurs in winter at Grand Manan in the Bay of 
Fundy. (Herrick.) A pair was taken near Toronto and sent to 
the Paris Exhibition of 1866. (Wcl/wraith.) Recorded by Andrew 
Murray from Severn House, Hudson bay. (4. 7. Sezon.) 
This species is known to breed on the margin of small lakes, 
and very likely also close to the sea, from Cumberland gulf on the 
east (Kumelin) along the whole Arctic coast (Richardson), and 
very abundantly along the shore of Bering sea and in the 
interior of Alaska as far as Fort Yukon. (Welson.) A few have 
been taken at Burrard inlet, B. C,; also at Dease lake, Cassiar, 
B.C. (Fannin.) 
BREEDING Notes.—In spring the black-throated loons arrive 
rather late, coming to the vicinity of the Yukon mouth from the 
15th to 25th May. They appear singly, and are soon after found 
scattered in pairs among the numberless ponds in the marshes 
along the coast. The eggs are usually placed upon some small 
islet in a secluded pond. There is no attempt at a nest, and 
frequently the eggs lie in a spot washed by water when the wind 
blows from the right quarter. In spite of this, however, the 
young are duly hatched, and by the first of July may be found 
swimming about with their parents. The eggs are dark olive, 
