604 GEOLOGICAL SURVEY OF CANADA. 
everywhere along the Grand Trunk Pacific Railway in 1906, from 
Manitoba to Edmonton, Alta. (Atkinson.) First seen at Indian 
Head, Sask., June 6th, 1892, after this date it became common and 
commenced to breed; first arrivals at Medicine Hat, Sask., May 17th, 
1894, evidently intending to breed; seen along Old Wives creek, 
Sask., in June, 1895; along St. Mary river and at Waterton lake, in 
Alberta, in July, 1895. (Spreadborough.) Some of the western 
references probably should go under the next variety. 
627a. Western Warbling Vireo. 
Vireosylva gilva swainsonu (BAIRD) RIDGW. 1875. 
Common from Lesser Slave lake to Peace River Landing, lat. 56° 
15’ in June, 1903; first seen at Edmonton, Alta., May 8th, 1897, 
breed in the vicinity; observed from Edmonton to McLeod river in 
poplar woods in June, 1898; not rare in foothills from Calgary south 
to Crow Nest pass; a common species at Banff, Rocky mountains, 
breeding in the trees in the valley; shot at Revelstoke, B.C., on May 
6th, 1890, after which they became common, also at Deer Park and 
Robson late in June, 1890; observed several at Trail near the Inter- 
national Boundary, in 1902, not very common; common near Fernie, 
B.C., in 1904 and west of Midway in 1905; this species is rare at 
Kamloops, but not uncommon at Agassiz, Port Heney and Hast- 
ings, B.C.; common at Chilliwack, B.C., in the spring of 1901, a 
few were also seen at McGuire’s further up the river; a common 
summer resident on Vancouver island; common at Victoria, Sooke 
and Comox in July, 1893. (Spreadborough.) North to Fort Simp- 
son on the Mackenzie river; rare. (Ross.) Very numerous every- 
where; breeds. (Streator.) East and west of coast range; com- 
mon summer resident. (f/annin.) Common summer resident at 
Chilliwack. (Brooks.) Collected west of Rocky mountains in 
British Columbia. (/thoads.) 
CCXLVII. LANIVIREO (Bairp). 1858. 
628. Yellow-throated Vireo. 
Lanivireo flavifrons (VIEILL.) LAWRENCE. 1868. 
A rare summer resident at Montreal; Mr. W. W. Dunlop, observed 
this species paired in Hochelaga woods, and shot two specimens 
