WARBLING VIREO. 



the tree-tops where the light is greened by the forest's 

 multitude of leaves hear the following song; 



you may be sure it is that of the Red-eyed Vireo; the 

 notes are clearly whistled, there is scarcely a suggestion 

 of the overtone, they are pitched very high, and the 

 groups themselves are closely connected in fact, slurred. 

 My rendering of the music shows that the bird attempts 

 intervals of a third, fourth, fifth, and even an octave; 

 but very few of these are really accurate; one has to 

 presume more than half the time that the bird meant to 

 do thus, or so, and take no note of failures. 



Warbling A smaller bird than the Red-eyed Vireo ; 



the upper parts a dull olive-gray inclined 

 Vireo gilvus 



L. 5.75 Inches t w ard brown; under parts dull white 

 May i2th slightly dashed with pale yellow on the 



breast; the first primary wing feather exceedingly short, 

 the long feathers of the wing and those of the tail tipped 

 with olive at the edges; no wing-bars; a well-defined line 

 of white-gray over the eye; the general color a grada- 

 tion from gray on the head to olive-brown on the back. 

 The pensile nest, usually attached to a Y branch well 

 above one's head, is woven of various vegetable fibres 

 and lined with soft grasses. Egg white speckled slightly 

 with umber, red-brown, or sepia. The range of this 

 Vireo extends throughout North America. 



This familiar bird may be justly termed a village 

 character. He makes his home among the maples and 

 elms of Plymouth, N. H. ; and Cambridge, as well as subur- 

 ban New York knows his cheery song throughout May 

 and June. Unfortunately he is not as easily seen as 

 heard. His time is spent among the tree-tops exploring 

 every leaf and twig with tireless energy ; the best way to 

 find him is to be on the lookout for a group of agitated, 

 wagging leaves; there in the midst of the disturbance 

 a tiny, restless, busy figure will presently appear and 



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