VIREOS 399 



63 Ic. V. n. micrus Nelson. SMALL WHITE-EYED VIKEO. 



Like noveboracensis, but smaller and duller colored, with a paler wash 

 of yellow on flanks. Wing : 2.29, tail 1.97, bill .38, tarsus .78. 



Distribution. Rio Grande Valley, Texas, to central Tamaulipas, Mex- 

 ico. 



The breeding range of the small white-eyed vireo in Texas extends 

 from Kinney and Lasalle counties to the Gulf of Mexico. 



632. Vireo button! Cass. HUTTON VIREO. 



Adults. Lores and orbital ring- dull whitish ; upper parts dull olive 

 brown, greener on rump, wings, and tail ; wing bars narrow, white ; under 

 parts dingy, tinged on sides with olive yellow ; spurious primary well 

 developed. Young : similar, but upper parts lighter brown, sides of head 

 buffy brown, under parts paler. Length : 4.25-4.75, wing 2.40-2.45, tail 

 2.00-2.10, bill from nostril .2G-.29, tarsus .72-.76. 



Distribution. Southern and central California, west and south of the 

 Sierra Nevada. 



Nest. As described by Cohen, hung in scrub oak heavily draped with 

 moss; made mainly of moss. Eggs: usually 4, white, lightly dotted 

 around larger end with shades of brown. 



Mr. Grinnell says that the Hutton vireo is common throughout 

 the year in Los Angeles County. While occurring from the willow 

 regions of the lowlands up to 6000 feet in the mountains, it prefers 

 the oak regions of the mesas and foothills. 



632a. V. h. Stephens! Brewst. STEPHENS VIKEO. 



Similar to huttoni, but paler ; olive gray above, greenish toward tail ; wing 

 bands pure white, broader. Length : 4.90-5.20, wing 2.50-2.65, tail 2.10- 

 2.20, bill from nostril .25-.oO, tarsus .70-. 75. 



Distribution. Mountains of western Texas, Arizona, Mexico, and Lower 

 California. 



632b. V. h. obscurus Anthony. ANTHONY VIREO. 



Like huttoni, but averaging smaller, with plumage darker and olive 

 tints brighter. 



Distribution. Breeds on the Pacific coast from British Columbia south 

 to Oregon, and winters in California. 



Nest. As described by Bowles, hung from twigs of a young fir, 9 feet. 

 from the ground, woven of hanging moss and lined with fine dried grasses 

 thickly interwoven. Eggs: 2, white, marked about the larger end with 

 black spots. 



633. Vireo bellii And. BELL VIREO. 



Loral streak and orbital ring dull white ; upper parts brownish olive, 

 olive green on rump; wings and tail brownish, wing bars narrow, dull 

 white ; throat white ; rest of under parts washed with sulphur yellow ; 

 under tail and wing coverts yellow. Length : 4.20-5.25, wing 2.05-2.30, 

 tail 1.80-1.95, bill from nostril .28-.30, tarsus .70-.75. 



Distribution. Breeds in the Mississippi Valley and on the Great Plains, 

 from Indiana to Dakota, and south through Texas to Mexico ; accidental 

 in New Hampshire. 



Nest. Hung from vines or forks of twigs, made of plant fibers and 



