638 GEOLOGICAL SURVEY OF CANADA. 
summer resident in the vicinity of Ottawa. (Cttawa Naturalist, 
Vol. V.) A very common warbler about Lansdowne, Leeds Co., 
Ont., where after the yellow warbler it is the most frequently seen 
of all others. I have found its nest several times, usually built in 
long grass and brusha little above the ground, sometimes as much 
as twelve inches. I have seen eggs in May, Juneand July. This 
species was also common on the borders of a marsh on Amherst 
Island, Lake Ontario. (Rev. C. J. Young.) A fairly common 
summer resident in Parry Sound and Muskoka districts. Arrives 
about the same time as the mourning warbler. (/. H. Fleming.) 
Only one individual observed on Moose River, near Moose Fac- 
tory, June 7th, 1896; not common in Algonquin Park, Ont.; found 
in low wet ground amongst grass and low bushes. Saw a nest 
with four young about a week old in a clump of grass in a marsh 
on June 26th, 1900. (Spreadborough.) Generally abundant about 
Toronto. I have found it in great abundance in all suitable 
places near Peterborough, Ont. (/. AHughes-Samuel.) Common 
summer resident at Guelph, Ont. Arrives about May toth and 
leaves about September 16th. (4. B. Klugh.) 
Observed at Pembina, on Turtle Mountain, and in the Rocky 
Mountains, but not in the open country between these points. 
 (Coues.) An abundant summer residentin the wooded portions of 
Manitoba; the Maryland yellowthroat is an abundant resident at 
Duck Mountain, Man.; its favourite haunts are low damp thickets, 
so that it is in a measure the complementary species of the mourn- 
ing warbler, which manifests a liking for none but the driest of 
copses. (Zhompson-Seton.) This is a common breeding summer 
resident at Avenue, Manitoba; arrives about May 2oth and stays 
toSeptember. (Norman Criddle.) This isa common summer resid- 
ent at Indian Head, Assa.; it was first seen May, 21st, 1892, and 
became common in a few days; they breed in considerable num- 
bers, nesting in rushes about a foot from the ground on the edge 
of small lakes; first seen at Medicine Hat, Assa., May 15th, 1894, 
they never became common; late in June the same year they were 
very common in all the willow thickets bordering the upper 
branches of Swift Current Creek in the east end of the Cypress 
Hills; one specimen was shot at 12-Mile Lake, near Wood Moun- 
tain, Assa., June 6th, 1895; later in the month it was taken on 
Rocky Creek near the 49th parallel and on Frenchman’s River; 
it was common in the Cypress Hills wherever there was brush, and 
