X 



Xanthocephalus xanthocephalus, 124. 

 Xantus's Murrelet, 1489. 

 Xema sabini, 1433. 

 Xenopicus albolarvatus albolarvatus, 

 1003. 

 gravirostris, 1004. 



Yakutat Song Sparrow, 343. 

 Yellow-billed Magpie, 38. 

 Yellow-bird, 191. 

 Yellow-hammer, 1037. 

 Yellow-headed Blackbird, 124. 



Yellow-legs, Greater, 1263. 



Lesser, 1266. 

 Yellow-shafted Flicker, 1037. 

 Yellow-throat, Salt Marsh, 506. 



Tule, 505. 



Western, 504. 

 Yellow Warbler, 460. 

 Yellow Warbler, Alaska, 462. 



California, 461. 



Sonora, 460. 

 Yosemite Fox Sparrow, 379. 

 Yuma Thrasher, 705. 

 Yuma Horned Lark, 842. 



"Zamelodia ludoviciana, 417. 



* melanocephala, 419. 

 Zenaidura macroura marginella, 



n 59. 

 Zone-tailed Hawk, 1687. 

 Zonotrickia albicollis, 335. 

 coronata, 317. 

 gambeli gambeli, 326. 



nuttalli, 331. 

 leucophrys, 319. 



* leucophrys leucophrys, 319. 



gambeli, 326. 



* nuttalli, 331. 

 querula, 315. 



2121 



