WHITE-EYED VIREO 227 



Winte?' range. — So far as is known the black-headed vireo in winter 

 is confined to the southern half of Sinaloa. Specimens from Volcan 

 Toliica, Mexico, on September 11, and Santa Leonor, Tamaulipas, on 

 April 12, were probably migrant individuals. 



Migration. — Few records are available. The dates of occurrence in 

 Sinaloa are from September 22 to March 20. In Texas they have 

 arrived at Kerrville by March 19 and have been seen at San Angelo to 

 September 25. 



Casual records. — The black-capped vireo has been taken in eastern 

 Nebraska twice; near Bellevue, on June 19, 1894, and at Meadow, on 

 May 19, 1921. Both localities are just south of Omaha. 



Egg dates. — Oklahoma : 7 records, May 20 to July 20. 



Texas : 26 records, April 17 to June 23 ; 13 records, May 15 to June 3, 

 indicating the height of the season. 



VIREO GRISEUS GRISEUS (Boddaert) 



WHITE-EYED VIREO 



HABITS 



The typical white-eyed vireo is widely distributed and well known 

 throughout the eastern half of the United States. Its range extends 

 northeastward into eastern Massachusetts, where it is only locally 

 distributed. I know of only a few places in my section of the State 

 where it can be found, mainly in low, swampy, briery thickets along 

 the banks of some tiny stream. We always look for it in these places 

 and seldom fail to find it, though it is more often heard than seen. 

 This vireo was formerly quite common in the vicinity of Cambridge, 

 Mass., but has since become scarce; William Brewster (1906) says of 

 its haunts there : "During the years of their comparative abundance 

 their favorite summer haunts were briery thickets covering swampy 

 or very moist ground, but scattered pairs were occasionally found 

 nesting in upland pastures among barberry bushes or other low 

 growing shrubs." 



Referring to its haunts in Greene County, Pa., Dr. Samuel S. 

 Dickey (1938) writes: "In habitat the White-eyed Vireo shows par- 

 tiality to swamps, swales, and glades; yet, in districts from which 

 such features are lacking, it is found inhabiting old fields grown up 

 in a variety of native vegetation. Favorites among areas so chosen 

 seem to be those where the cover consists of saplings of maple and elm 

 associations; or of small trees and shrubs such as wild plum, witch 

 hazel, burning bush, and the dogwoods and willows, and even an alder 

 stand. The ground cover may be of such growth as cat-briers {Smilax 

 sp.), wild oats grass {Danthonia spicata)., ground pine {Ly cop odium 

 complanatum var. ftahelU forme), or other associated plants." 



