VIREOS 



(626) Vireosylva philadelphica 



Cassin. 



PHILADELPHIA VIREO. As 

 shown by the upper bird; entire under 

 parts a pale yellowish; upper parts 

 olive-Rreen; a dull superciliary line. 

 L., 4.80. W., 2.60; T., 1.95. 



i?OHge — Breeds in Me., N. B., 

 Ont., Mich, and Man. Winters in 

 Central America. Rare and local. 



(627) Vireosylva gilva gilva 



(Vieill.) (Lat., yellowish). 



WARBLING VIREO. Shown by 

 the lower bird; olive green above, 

 grayest on the head and yellowest 

 on the rump; below whitish, washed 

 with yellowisli on the sides. L., 5.40; 

 W., 2.7s; T., 2.25. 



Range — Eastern North America; 

 breeds from southern Canada south 

 to the Gulf. 



offspring. Their rather bulky nests of twigs and weeds, 

 Hned with feathers, are placed at low elevations in thorny 

 thickets. 



Shrikes have many clear, pleasing whistles as well as some, 

 squeaking, unmusical notes. In fact, the Northern Shrike is 

 no mean imitator, being nearly the equal of the jay in that 

 respect. 



Family VIREONIDyE. Vireos 



Vireos are found only in the New World, about fifteen of 

 the fifty-odd species being found in the United States. 

 They are birds of dehberate movements and usually pleasing 

 songs, spending most of their time among dense foliage, from 

 which they glean their fare of insects. Their bills are shaped 

 somewhat like those of shrikes — that is, notched and hooked 

 at the tip, but not lor the same use. 



RED-EYED VIREOS are among the most common and 



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