83 



Details of structure of Yellow-throated Vireo, nat. size. 

 Subgenus LANIVIREO Baird. 



*238. Vireo flavifrons (Vieill.). YELLOW-THROATED VIREO. 



Rather common summer resident northward, breeds. In the southern part 

 of the State it is usually only seen as a migrant, but Mr. Ridgway reports it as 

 breeding in Knox and Gibson counties. They arrive in Southern Indiana about 

 April 20 ( 19-25) and pass northward early in May. When they leave us they 

 are usually paired. In autumn they return late in August or early September, 

 and sometimes are present until October 13. 



Details of structure of Solitary Vireo, nat. size. 



239. Vireo solitarius (Wils.). BLUE-HEADED VIREO. 



Regular migrant, some years not uncommon, others quite rare. It breeds oc- 

 casionally in the northern part of the State. Mrs. Jane L. Hine has noted it nest- 

 ing in Dekalb County. It usually arrives from the south later than the other 

 species, having been noted in Franklin County April 25 to May 7. In autumn 

 they are present late in September and early in October ( 5-10). 



Details of structure of White-eyed Vireo, nat. size. 

 Subgenus VIREO Vieillot. 



*240. Vireo noveboracensis (Cfmel.). WHITE-EYED VIREO. 



Summer resident; in some localities in Southern Indiana, common; in others 

 rare ; in the northern part of the State it is not very common and in the north- 

 western corner appears to be rarely if ever found. It frequents thickets, blackberry 



