127 

 280. Tireo fiavlfrons Vieill. Yellow- throated Vireo. 



Breeding Range — Mostlj- north of the Middle States. 

 Winter Distribution — Mexico and Central America. 



Tolerably common transient but rare summer resident, occurring 

 May 2-September 15. 



In the northern parts of Pennsylvania it is probably a more 

 abundant breeder. 



281» Vireo soUtarlus (Wils.). Blue -headed Vireo. 

 Solitary Vireo. 



Breeding Range — Chiefly north of U. S., except along the higher 



mountains. 

 Winter Distribution — Through eastern Mexico to Guatemala. 



Regular transient in southeastern Pennsylvania and southern 

 New Jersey, occurring April 20-May 5 and September 20-Octo- 

 ber 15. 



On North Mountain and Wopsononock Mountain it has been found 

 abundantly in summer by Mr. Dwiglit {Auk, 1892), and it doubtless 

 breeds at other points along the Pennsylvania mountains. 



282. Vireo noveboracensis (Gmel.). White-eyed Vireo. 



Breeding Range — Eastern U. S. 



Winter Distribution — Through eastern Mexico to Guatemala. 



Summer resident; found most abundantly in the Pine Barren 

 swamps of New Jersey, where it is one of the most characteristic 

 birds. In Pennsylvania it is less common and is found during sum- 

 mer in suitable swampy localities. Arrives May 5 and departs 

 October 1. 



Family Mniotiltidse — The Warblers. 



Thirty-nine species of Warblers have been taken in Pennsylvania 

 and New Jersey. Of these, fourteen breed in the southern portions 

 of these States ; the Maryland Yellow-throat, Oven-bird, Yellow 

 Warbler and Cliat are the most abundant, though the Chat does not 

 occur beyond the northern border of the Carolinian Fauna. The 

 Kentucky, AVorm-eating, Blue-winged and Hooded AVarblers and 



