VIREO. 335 



and the whole afterwards tied over by almost invisible 

 threads of the same, so as to appear as if glued on ; and 

 the entire fabric now resembles an accidental knot of the 

 tree grown over with moss."* 



YIREO Solitarius, (Yieill.) Solitary vireo. This is a rare 

 species, but is sometimes seen. It has been observed from 

 Georgia to Pennsylvania, but has been regarded as a 

 straggler in the latter State. 



YIREO Noveboracensis, (Bon.) White-eyed vireo, or 

 fly-catcher. This agile, industrious, and interesting little 

 songster visits the mountain regularly in the summer season. 

 His plain, diminutive form would scarcely be observed or 

 attract attention but for a series of striking notes to which 

 he gives utterance. These are especially eccentric and 

 whimsical in their character, changed with great quickness, 

 and he is affirmed, by some of his biographers, to possess a 

 range of imitative combination quite surprising. He arrives 

 in April, and leaves in the latter part of September, often 

 later. The pensile nests which seem to characterize the 

 family of vireos is also constructed by him. His food is the 

 same as the rest of the vireos, consisting of different kinds 

 of berries and of insects, of which he is a most vigilant hunter. 

 Of this species, Nuttall observes, " The present species re- 

 tires no farther for winter quarters than the southern part of 

 the United States, where many also breed, as would appear 

 from the concomitant circumstance of their music." 



YIREO Gilvus, (Bon.) Warbling vireo. This is the most 

 highly endowed musical genius of the family, indeed of 

 the whole woods almost. As a songster, he is richly 

 gifted with variety and compass of notes, and for melody 

 and sweetness, touching tenderness, and exquisite delicacy 

 of intonation, no vibration of art can offer a parallel. He 

 arrives on the mountain from Tropical America about the 

 first of May, leaving the last of September. He is like the 

 rest of the genus in all his habits. Nuttall states that "he is 



* Nuttall. 



