598 GEOLOGICAL SURVEY OF CANADA. 
adult male at Caribou Crossing June 27th, and heard the song at 
Lake Marsh. An adult female was taken by Osgood near the 
Nordenskiold River July 22nd and family parties were often 
found in the alders and willow thickets between the Pelly River 
and Circle City, in the Yukon valley. (Szshop.) Three immature 
males were taken at Kenai Mountains, Sheep Creek, and Homer, 
Alaska; found occasionally at the upper edge of timber line on 
Kenai Mountains. (Chapman.) 
MUSEUM SPECIMENS. 
Twelve; four taken at Agassiz, B.C., in May, 1880,. four at 
Chilliwack, B.C., in May, 1901, two at Deer Park, Columbia 
River, June 12th, 1890, and two at Victoria, Vancouver Island, in 
May, 1893; all by Mr. W. Spreadborough. 
654. Black-throated Blue Warbler. 
Dendroica cerulescens (GMEL.) BAIRD. 1865. 
Audubon, Vol. II., p. 63, states he found a dead one in Labra- 
dor. (Packard.) An uncommon summer resident at Halifax, 
N.S. (Downs.) Seen in woods at Margaree, Cape Breton 
Island, July, 1898. (Macoun.) A few were detected at Souris, 
Prince Edward Island. (Dwight.) A rare summer resident at 
St. John, N.B. (Chamberiain.) Tolerably common summer resi- 
dent at Scotch Lake, York Co., N.B. (W. AH. Moore.) Taken at 
Beauport; rather uncommon in Quebec. (Deonne.) A common 
and transient visitant at Montreal. A few probably breed at 
Montreal. I have seen them from May 4th to October 5th. 
(Wintle.) 
A moderately common migrant in the vicinity of Ottawa. 
(Ottawa Naturalist, Vol. V.) Ihave occasionally noticed this bird 
in spring and fallin the county of Leeds, Ont. Once I found the 
the nest in June, 1899, in an ashswamp. It was built in a bush ot 
Spirea that grew among ferns and weeds, and was not more than 
three feet from the groun!. The bird was very tame and easily 
identified. The nest much resembled the nest of the redstart 
except for location. (Rev. C./. Young.) An abundant summer 
resident in the Parry Sound and Muskoka districts of Ontario. 
I took a nest on June 8th, 1894. It was on the side of a hill ina 
dense hardwood bush, and was placed on the fallen branch of a 
dead hemlock, shaded by the horizontal branch of a seedling 
s 
ein 
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