BIRDS OF YOSEMITE NATIONAL PARK 125 



SHRIKES: Family Laniidae 



LOGGERHEAD SHRIKE (Lanius 

 ludovicianus): 8-10 in. Upper parts 

 gray; rump and upper tail coverts 

 paler; wings and tail black, marked 

 with white; black mask from bill to well 

 behind eye; bill hooked; under parts 

 whitish. Known as the butcherbird be- 

 cause of habit in feeding of dismember- 

 ing insects or other prey which it im- 

 pales on thorns or other sharp objects. 



Frequents terrain providing areas of 

 bare ground or that grown sparsely to 

 grass or other low growth, where visi- 

 bility is good and where nest sites and 

 perches are provided by scattered trees 

 or large bushes. Not uncommon about 

 human habitations. Inhabits chiefly the 

 Lower and Upper Sonoran life-zones. 

 Some wandering. Several records for 

 Yoscmite Valley. Often seen at lower 

 elevations in the Yosemite region, as in 

 the western foothills. 



VIREOS: Family Vireonidae 



HUTTON'S VIREO (Vireo hut- 

 toni): Ay^-AYi in. Above olive-gray; 

 below yellowish; two whitish wing-bars; 

 head color lightens between eye and 

 bill; whitish eye-ring, interrupted above. 

 Does not jerk wings like ruby-crowned 

 kinglet. 



Frequents chiefly non-deciduous oaks 

 in the Upper Sonoran and Transition 

 life-zones. R. on the western slope of 

 the Sierra. Has been observed in the 

 Yosemite region up to 5,800 feet. 



SOLITARY VIREO (Vireo soli- 

 tarius): 5-6 in. Above gray, tinged with 

 olive; below white; sides tinged with 

 yellowish; white lores and ring around 

 eye; whitish wing-bars. Song: Jimmy 

 — come here! Hurry up! 



Frequents oak and coniferous forests 

 chiefly in the Transition life-zone but 

 also in adjacent zones. S. V. in the 

 Sierra ; in lower, warmer areas in win- 

 ter. In the Yosemite region has been 

 recorded as far east as Indian Canyon 

 and Merced Lake. Fairly common on 

 the floor of Yosemite Valley. 



LOGGERHEAD SHRIKE 



8-10 



1.-^' I 



HUTTON'S VIREO 



SOLITARY VIREO 



5-6 



