66 NESTS AND EGGS OF N. A. BIRDS. 



1 20. GEOTHLYPIS PHILADELPHIA. 



MOURNING WARBLER. 



Habitat, Eastern Province of the United States, The only nest 

 known of this species was found by Mr. John Burroughs, in the 

 State of New York. This was built in ferns, about a foot from the 

 ground, on the edge of a hemlock wood. It was quite massive, 

 composed of stalks and leaves. The cavity was quite deep, and 

 lined with tine black rootlets. The eggs were three in number, 

 measuring .75 by .55. They "were of a light flesh color, uniformly 

 speckled with fine brown specks." 



121, GEOTHLYPIS MACGILLIVRAYI. 



MACGILLIVRAY'S WARBLER. 



This Warbler is found throughout the Western and Middle 

 Provinces of United States. It breeds in abundance in Utah, 

 Montana, Idaho, Oregon, Washington Territory, and probably also 

 in Northern California. 



They usually build in low underbrush or thickets. Tne nest 

 is cup-like in shape, about two inches in height, three in diameter, 

 and somewhat loosely constructed of slender strips of bark, decayed 

 stalks of plants, dry grasses, intermixed with a few fine roots, and 

 lined with finer materials of the same. The cavity is one and a 

 half inches in depth, and two in diameter at the rim The eggs, 

 four in number, are .75 of an inch in length and .50 in breadth. 

 The ground-color is a pinkish-white, marbled and spotted with pur- 

 ple, lilac, reddish-brown and dark-brown, approaching black. 



122. GEOTHLYPIS TRICHAS. 



MARYLAND YELLOW-THROAT. 



This Warbler is found throughout the whole United States. In 

 Ohio it begins to build about the middle of May. The nest is usu- 

 ally placed on the ground in a bed of old leaves, at the roots of 

 low shrubs, often it is sheltered under a brush-pile. It is some- 



