CATALOGUE OF CANADIAN BIRDS. 577 
Only observed at Pembina on the 49th parallel where it was 
breeding in small numbers about the fort. (Couwes.) Common 
summer resident of wooded parts of Manitoba; on July 17th went 
to White Horse hill; found a large colony of white-breasted swal- 
lows nesting in old woodpecker’s holes, with which the timber is 
riddled; this is the largest colony I have seen; it numbers perhaps 
20 pairs; nearly all of these settlements that I have noted have 
been close to a sheet of water. (E. T. Seton.) Fairly common at 
Aweme, Man. (Criddle.) One of the most abundant breeding 
species in Manitoba, and the west. (Atkinson.) First seen at 
Indian Head, April 8th, 1892; they became common by May roth, 
but a few remained to breed as they were seen as late as June 24th; 
only two specimens observed at Crane lake in 1894 and none at 
Medicine Hat; a few specimens were observed at Waterton lake, 
close to Chief mountain in August, 1895; observed from the mouth 
of Lesser Slave river to Peace River Landing, lat. 56° 15’, June, 
1903; first seen at Edmonton, Alta., April 30th, 1897, breeding in 
trees late in May, found a nest in a hole in a balsam poplar stub 
about 12 feet from the ground; nest made of a little fine grass, lined 
with feathers; seen from Edmonton to Jasper House, breeding in 
holes in trees in June, 1898. (Spreadborough.) A few seen in the 
timber along creeks in 1905 and one at Hay lake, June 6th, 1906. 
Mr. Day found a nest with four eggs in the Skull creek timber, 
June gth, 1906. (A. C. Bent.) Abundant every year and breed- 
ing in great numbers throughout northern Saskatchewan. (Coubeaux.) 
While on a moose hunt, about twenty miles above Chemawa- 
win, I saw apparently thousands of these birds on a few 
dead trees standing out in the marsh. Some of those trees 
were so crowded by the perching swallows that there seemed 
literally to be no more room. (Nutting.) A few specimens 
were seen between Athabaska Landing “and Lesser Slave river; 
afew individuals at north end of Methye portage; about half 
a dozen bitds on Isle a, Ja\°Crosse lake., (/.. W.. Macoun.) 
This neat and handsome bird frequents the wooded districts up 
to lat. 60°, making its nest of dried grass and feathers in hollow 
trees. (Richardson.) North to Fort Good Hope, Mackenzie 
river. (Ross.) Breeding in trees at Canmore, within the Rocky 
mountains, in June, 1891; not uncommon at Revelstoke, on the 
Columbia, B.C., in April, 1890; breeding in the old trees in the 
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