CATALOGUE OF CANADIAN BIRDS. 635 



Vancouver island, associating with auchihoni. (Streator.) An 

 abundant summer resident. (Fannin.) Tolerably common mi- 

 grant at Chilliwack, B.C. (Brooks.) Found associating with 

 auduhoni on Vancouver island; not seen east of the Coast range. 

 (Rhoacls.) This species is the hardiest of American warblers. In 

 Alaska it breeds to the northern tree limit, considerably within the 

 Arctic circle. (Nelson.) My specimens of this species were obtained 

 at Fort Yukon where they breed. I observed this species at Nush- 

 agak, Bristol bay, in June, 1878, where it was quite abundant 

 among the willow thickets along the river. (Turner.) We found 

 Hoover's warblers at Skagway, Glacier, Log Cabin and Haine 

 Mission, on the Lynn canal and White pass; also Bennett, Cariboo 

 Crossing, Lake Tagisli, Miles canon, White river, Sixty-mile creek, 

 and 12 miles above Circle City, in the Yukon valley. (Bishop.) A 

 single adult male was taken June 23rd, 1897, and a few others heard 

 previously in the dense firs along Indian river, Sitka. (Grinnell.) 

 Two specimens were seen during June and July and several during 

 August and September, 1901. One was taken on the Kenai mount- 

 tains, August 17th, and one at Sheep creek, August i8th. (Figgins.) 

 Several specimens taken at Seldovia and Sheep creek, Alaska, in 

 1903. (Anderson.) 



Breeding Notes. — Hoover's warblers were numerous summer 

 residents of the timber tracts throughout the Kowak valley from 

 the delta eastward; in the latter part of August scattering com- 

 panies were frequenting the spruce, birch and cottonwoods, among 

 the foilage of which they were constantly searching, with oft-re- 

 peated "chits," just as are their habits in winter in California; the 

 last observed, a straggling flock of six or eight, was seen in a patch 

 of tall willows about sunset of August 30th; the following spring 

 the arrival of Hoover's warblers was on May 22nd; they were 

 already in pairs and the males were in full song ; at this season they 

 were confined exclusively to the heavier spruce v/oods; in the 

 Kowak delta, on the 23rd of June, a set of five considerably in- 

 cubated eggs was secured ; the nest was in a small spruce in a tract 

 of larger growth, and only four feet above the ground ; it is a rather 

 loose structure of fine, dry grass-blades, lined with ptarmigan 

 feathers ; the colour of the eggs is an extremely pale creamy tint, 

 almost white, with wreaths about the big ends of large lavender 

 blotches, and smaller spots of drab, overlaid by a few Vandyke 

 brown. (/. Grinnell.) 



