VIREOS. 



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The Vireos, or Greenlets, are dainty little birds 

 whose leaf-tinted dress harmonizes so well with the 

 foliage of their haunts that they often pass unnoticed. 

 They have sweet voices, and build beautiful basket 

 nests, suspended from forked twigs. They are insect 

 eaters and are most useful in preserving our shade 

 trees from the ravages of caterpillars, inch-worms, 

 and leaf-eating beetles. Four species nest here, the 

 Red-eye, White-eye, Warbling, and Yellow-throated, 

 while in migration the Blue-headed, and possibly the 

 Philadelphia, may be seen. 



Red-eyed Vireo: Vireo olivaceus. 



Length about 6 inches. 



Upper parts grayish-green; crown gray, bordered with 

 black. 



A conspicuous white line over the red eye. 



Under parts pure white. 



Resident (abundant) from April 25 to October 15; winters 

 in Central and South America. 



The Red-eye is the most common of our Vireos 

 and is found wherever there are large trees in wood- 

 land, in orchards, and in the shade trees of our lawns. 

 Mr. Burroughs writes : " The first among the less 

 common birds which I identified when I began the 

 study of ornithology, was the Red-eyed Vireo, the 

 little gray bird with a line over its eye, that moves 

 about all day with its incessant cheerful warble, and it 

 so fired my enthusiasm that before the end of the 



