THE INVITATION. 265 



mountainous districts, another. The subdi- 

 vision of ground warblers, the most common 

 members of which are the Maryland yel- 

 low-throat, the Kentucky warbler, and the 

 mourning ground warbler, is usually found 

 in low, wet, bushy, or half-open woods, often 

 on, and always near, the ground. 



The summer yellow-bird, or yellow war- 

 bler, is not now a wood-bird at all, being 

 found in orchards and parks, and along 

 streams, and in the trees of villages and 

 cities. 



As we go north the number of warblers 

 increases, till, in the northern part of New 

 England, and in the Canadas, as many as 

 ten or twelve varieties may be found breed- 

 ing in June. Audubon found the black-poll 

 warbler breeding in Labrador, and congrat- 

 ulates himself on being the first white man 

 who had ever seen its nest. When these 

 warblers pass north in May, they seem to go 

 singly or in pairs, and their black caps and 

 striped coats show conspicuously. When 

 they return in September, they are in troops 

 or loose flocks, are of a uniform dull drab 

 or brindlish color, and are very fat. They 

 scour the tree-tops for a few days, almost 

 eluding the eye by their quick movements, 

 and are gone. 



