LIST OF ILLUSTRATIONS xxi 



482. Shrike, bill . . . 391 



483. Northern Shrike . . . . 392 



484. White-rumpect Shrike . . . 392 

 4S5. Black-capped Vireo, head . . 394 

 4S(5. Cassin Vireo, head . . . .394 



487. Red-eyed Vireo, head . . . . 394 



488. Warbling- Vireo. head . . . 394 



489. Red-eyed Vireo, head . . 395 



490. Warbling- Vireo, head . . 395 



491. Cassin Vireo, head . 396 



492. Black-capped Vireo, head . . 397 



493. Redstart, bill - 401 



494. Red-faced Warbler, bill . 401 



495. Black and White Warbler, head . . 401 



496. Black and White Warbler, foot . . 401 



497. Warbler (Helminthophila). foot . 401 



498. Chat, head . .401 



499. Northern Parula Warbler, head . . 401 



500. Warbler (Dendroica), bill . . 401 



501. Black and White Warbler, head . 402 



502. Calaveras Warbler, head . . 402 



503. Calaveras Warbler, head . . 404 



504. Northern Parula Warbler, head . . . 406 



505. Warbler (Dendroica), foot . . 407 



506. Blackburnian Warbler, head . 407 



507. Yellow Warbler, head . 407 



508. Magnolia Warbler, head . 408 



509. Olive Warbler ... .408 



510. Black-throated Blue Warbler, head . 408 



511. Black-throated Gray Warbler, head . 408 



512. Hermit Warbler, head 408 



513. Black-throated Green Warbler, head . . 408 



514. Golden-cheeked Warbler, head . . 408 



515. Townsend Warbler, head . 408 



516. Black-poll Warbler, head . 409 



517. Yellow-rumped Warbler, head . 409 



518. Chestnut-sided Warbler, head . 409 



519. Olive Warbler . .410 



520. Yellow Warbler, head . .411 



521. Black-throated Blue Warbler, head . . 412 



522. Yellow-rumped Warbler, head . .412 



523. Audubon Warbler . . 413 



524. Magnolia Warbler, head . . . 415 



525. Chestnut-sided Warbler, head 416 



526. Black-poll Warbler, head . . .417 



