LIST OF ILLUSTRATIONS xix 



392. Song Sparrow, head 306 



393. Western Evening Grosbeak . 307 



394. Pine Grosbeak 308 



395. California Purple Finch, tail 310 



396. Purple Finch 311 



397. Cassin Pur,ple Finch, head . . 312 



398. House Finch, male 812 



399. House Finch, female . 312 



400. Crossbill, bill 313 



401. White-winged Crossbill 315 



402. Gray-crowned Leucosticte, head . . . . . . . 315 



403. Hoary Redpoll . . . . . . . . . .318 



404. Redpoll, head 319 



405. Goldfinch 321 



406. Arkansas Goldfinch, adult 322 



407- Arkansas Goldfinch, immature 322 



408. Lawrence Goldfinch 323 



409. Pine Finch 323 



410. English Sparrow, male ....... 324 



411. English Sparrow, female . 324 



412. Snowflake 325 



413. Lapland Longspur, summer male ...... 326 



414. Lapland Longspur, winter male 326 



415. Smith Longspur, summer male . ... . . . . 327 



416. Chestnut-collared Longspur, summer male ..... 328 



417. Chestnut-collared Longspur, winter male 328 



418. McCown Longspur . . . 328 



419. Western Vesper Sparrow, tail 329 



420. Sandwich Sparrow . . . . . . . . .331 



421. Large-billed Sparrow . 833 



422. Baird Sparrow 333 



423. Western Grasshopper Sparrow 334 



424. Sharp-tailed Sparrow, tail 335 



425. Harris Sparrow ... 337 



426. White-crowned Sparrow ........ 338 



427. Gambel Sparrow, head . 339 



428. Golden-crowned Sparrow ........ 340 



429. White-throated Sparrow, head 340 



430. Western Tree Sparrow ........ 341 



431. Western Chipping Sparrow, head ...... 342 



432. Brewer Sparrow, head . .843 



433. Worthen Sparrow, head 344 



434. Black-chinned Sparrow 345 



435o Slate-colored Juneo 846 



436. Thurber Jiraeo .348 



