BIRDS OF THE NORTHERN STATES 325 
624 Red-eyed Vireo. Length 6% inches. 
Most easily distinguished by his song, which is so broken up by pauses 
that he has been called the Preacher. We might fancy his saying, “ You 
see it? — you know it? — Do you hear me? — Do you believe it?” Olive 
green back, top of head slaty, with a 
white line over the eye and a dark one 
above that ; under parts white. Nest 
a well-made, deep-hanging basket, 
resembling the Oriole’s but much 
smaller. Common S.R. 
627 Warbling Vireo. Length 5} 
inches. 
Song, as indicated by the name, 
is a pleasing warble, not broken or 
interrupted like the Red-eye’s but : 
continuous. Passes the greater part RED-FYED VIREO 
of his time in the upper branches of 
trees and is especially hard to see. Upper parts ashy olive green; 
under parts white, slightly washed with yellowish, especially on the 
sides. Nest, the same as the Red-eye’s. Common S.R. 
625 Philadelphia Vireo. S.R. 631 White-eyed Vireo. Rare S.R. 
628 Yellow-throated Vireo. S.R. 633 Bell Vireo. Occasional S.R. 
629 Blue-headed Vireo. Rare S.R. 
Wood Warbler Family. — This large group of birds is at once the 
delight and despair of the young bird student. Most of them have 
brilliant plumage, yellow and olive green being the characteristic colors ; 
but a few species are dressed in a different color scheme. They are small 
birds, most of them smaller than an English sparrow. They are inhab- 
itants of woodlands, shade trees, orchards, and thickets, many of them 
keeping so well out of sight that to the uninitiated their existence is 
unknown. They live upon insects captured on trees and bushes, and 
have no bad habits to offset the services rendered. Their bill, as this 
feeding habit would lead us to expect, is slender and sharply pointed. 
Several have good vocal talent, but, generally speaking, the Warblers 
have weak voices and the name applied to the family is inappropriate. 
This brief statement should help students to identify a bird as a Warbler 
