358 BIRDS OF ONTARIO. 



The range of this species is chiefly along the west coast or 

 middle district of the continent. In the east it occurs rarely. As a 

 straggler, I have met with it only on two occasions, the latter being 

 on the llth of May, 1886, when a specimen was taken at the Beach 

 by K. C. Mcllwraith. Mr. Saunders mentions having obtained two- 

 near London, and Mr. Allan Brooks got one at Milton. 



It is a very plainly attired species, and may readily be overlooked r 

 for there is nothing in its dress or manner to attract attention, but 

 on close examination the color of the crown patch is a distinguishing 

 mark not likely to be mistaken. The sexes closely resemble each 

 other, and the young are like them, except that they do not always 

 have the brown crown patch till after the first year. 



They are by no means conspicuous birds, but they have their own 

 route to follow, and keep by it regularly every season. 



Province, county, township, territory are passed quietly over till 

 they reach the far distant land of Alaska, where Mr. Nelson says- 

 they have been observed throughout the wooded region of the north 

 from the British boundary line, west to the shores of Behring Sea, 

 and north within the Arctic circle as far as the tree limit. They 

 breed throughout the interior, and Kennicott secured a set of egg* 

 on the 10th of June and another on the 15th of the same month. 



HELMINTHOPHILA PEREGRINA (WiLs.). 

 266. Tennessee Warbler. (647) 



Olive-green, brighter behind, but never quite yellow on the tail coverts, 

 more or less ashy towards and on the head ; 110 crown patch ; below, white, 

 often glossed with yellowish, but never quite yellow ; a ring round the eye 

 and superciliary line, whitish, frequently an obscure whitish spot on outer 

 tail feathers; lores, dusky; in the female and young, the olivaceous glosses the 

 whole upper parts. Length, 4-4 ; wing, about 2f ; tail, 2 or less. 



This comparative length of wing and tail, with other characters, probably 

 always distinguishes this species from the foregoing. 



HAB. Eastern North America, breeding from Northern New York and 

 Northern New England northward to Hudson's Bay Territory ; Central 

 America in winter. 



Nest, on or near the ground, built of grasses, mosses and bark strips, lined 

 with fine grass and hair. 



Eggs, four, white, with markings of reddish-brown about the larger end. 



