402 NOTES ON THE 
ers. Remaining almost constantly concealed from view in the 
leaves and fine branches of the undergrowth of border land to 
denser forests, it flips suddenly up into the air of the open 
places above the undergrowth, and seizing its insect, disap- 
pears as quickly in the thicket again. They come with the 
great influx of warblers from the 10th to the 12th of May, and 
are found building their nests from about the 20th to the end 
of the first week in June, and sometimes bring out two broods. 
The structure consists of dry leaves and fibrous barks, and is 
lined with grass and hairs in addition to the fibres mentioned. 
It is almost proverbially bulky, and placed in the forks of a 
bush near the ground and usually contains from three to four 
white eggs, variously speckled with reddish brown. They all 
disappear during the last week in August. 
SPECIFIC CHARACTERS. 
Bill black; feet pale yellow. Head and neck all around, and 
fore part of the breast black; a broad patch on the for 
head extending around on the entire cheeks and ear coverto- 
and the under parts bright yellow; upper parts and sides of 
the body olive-green; greater portion of inner web of the three 
outer tail feathers, white. 
Length, 5; wing, 2.75; tail, 2.55. 
Habitat, eastern United States, and west to the Plains. 
SYLVANIA CANADENSIS (L.). (686.) 
CANADIAN WARBLER. 
When this warbler first came under my notice, in 1875, I was 
confident it was a straggler, but without any resource for 
information as to the ultimate limits of its migratorial distri- 
bution, I did not have to wait very long before his local history — 
began to unfold in fine style, for in a few weeks I bagged his 
nest, companion, self, eggs and all. 
It reaches the lower limits of my province about May 15th, 
and the larger portion of them pass still further north, never- 
theless may remain and breed with us. The nest has been 
found by Mr. Treganowan and Mr. Lewis, and reputedly by 
some one else, and always on the ground. (The location has been 
occasionally given from Audubon to date, as in low trees and 
bushes). It consists of leaves, roots, and grasses, its lining 
generally of the same with some hairs and considerable lichens 
included. Although quite bulky, it is rather shallow, and 
generally contains four gray-white eggs, tinted with a slight 
blush of rose and spotted or blotched with lilac and brown 
especially about the larger end. 
