AMERICAN ORNITHOLOGY. 65 



through the eye. The female is much brighter than the female of the 

 Black-throated Green having a bright yellow throat mixed with black, 

 and bright greenish-yellow upper parts with black streaks. The birds 

 are found entirely where there is cedar timber, and they build their 



nests in these trees, usually at low elevations, such as five or ten feet 

 from the ground. The nests are handsome structures, compactly 

 woven of grasses, mosses and cobwebs, and lined with hair and feathers. 

 The four eggs that they lay are white, specked chiefly around the large 

 end with cinnamon or reddish brown. They average about .75 x .55 

 inches. The birds first appear in Texas about the middle of March 

 and may be found breeding during April and May. 



BLACK^THRORTED GREEN WARBLERS, 



A. O. U. No. 667. (Dendroica virens) . 



RANGE. 



The United States and southern Canada east of the Great plains, 

 breeding in the northern half of the United States and in the Alleghenies 

 south to Georgia; in the fall they migrate through Texas and Mexico to 

 Guatemala where most of them winter. 



HABITS. 



With the possible exception of the Pine Warbler, Black-throated 

 Greens are most abundant of resident Warblers in eastern United States. 

 During migration, Black-polls and Myrtle Warblers are also very abun- 

 dant but they all pass on beyond our borders. During . the summer 

 these birds are found almost exclusively in coniferious trees but in the 

 spring and fall, during migrations they may be met with anywhere; in 

 the fall migration especially, they like to keep in the tops of tall trees in 

 company with many other varieties and then they are very hard to 

 identify as at that season they sing but very little. They appear in the 

 United States about the first of April reaching their breeding grounds 

 in the north after the first of May. By the end of the month they have 

 all mated and retired to the pine covered hill-sides to breed. In ex- 

 tensively wooded districts, they nest in communities but in isolated 

 pine trees in other woods a single pair may often be found nesting. 

 As a rule they like low growths of pines but many may be found in 

 very large trees; in either case the nests are usually placed well up 

 towards the top and wholly concealed from below by the numerous 

 needles. The birds are bright little fellows, ever on the watch to see 



