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BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



under wing coverts except a rim around the total area covered by the 

 coverts very broadly edged vrith white, the marginal coverts sooty 

 black, the wliite coverts and axillars forming a large very conspicuous 

 white area on the under side of the vfing; cere and entire head bright 

 ochraceous-orange except for loreal area, which is liberally sprinkled with 



Figure 4. — Gymnogyps calif ornianus. 



black bristlelikc feathers, giving it a blacldsh appearance; chin and 

 upper throat lilve head; rest of throat light jasper red; hind neck pale 

 grayish blue; bill whitish; iris scarlet; tarsus and toes ahzarene pink; 

 tongue, gape, and ear openings "gamboge." 



Immature (sexes alike) . — Similar to adults but with head completely 

 feathered with fuscous down, the skin blackish; plumage of body, 

 wings, and tail similar to adult, but with less gray on wings and tail, 



