FAMILY VIKEONID^E. VIREOS. 



GENUS VIREO VIEILLOT. 

 Subgenus VIBEOSYLVA Bonaparte. 



Details of structure of Red-eyed Vireo, nat. siza. 

 : 235. Vireo olivaceus (Linn.). RED-EYED VIREO. 



Abundant summer resident, breeds. Perhaps the most common bird of the 

 woodlands, where its .loud voice is one of the most characteristic sounds. Arrive 

 April 18-25 and return September 15-21. They mate the first week in May in 

 Southern Indiana, and soon begin the construction of a beautiful nest, which is 

 hung from the fork of one of the lower limbs of some forest tree. 



Details of structure of Philadelphia Vireo, nat. size. 

 236. Vireo philadelphicus (Cass.). PHILADELPHIA VIREO. 



Migrant and perhaps summer resident in the northern part of the State. Usu- 

 ally rare, but occasionally they are found in some numbers, especially in the 

 northern part of the State. I have taken them at Brookville as late as May 23. 

 The species somewhat resembles the next and is likely to be overlooked. In the 

 Whitewater valley it seems to be a regular migrant, passing south late in Septem- 

 ber (21-25). 



Details of structure of Warbling Vireo, nat. size. 

 "237. Vireo gilvus (Vieill.). WARRLING VIREO. 



Common summer resident breeds. Arrives April 19-25, remains until Sep- 

 tember 21. In the southern part of the State it frequents the trees along water 

 courses, the orchards and lawns, and the well phaded streets of the towns. It is a 

 beautiful songster, singing its sweet notes as it moves from limb to limb, searching 

 for its insect food. This is a very beneficial bird to the horticulturist. 



