LIST OF ILLUSTRATIONS xxiii 



572. Vigors Wren . 447 



573. Parkman Wren .... 448 



574. Western Winter Wren . 449 



575. Brown Creeper, bill .... . . 451 



570. Brown Creeper, tail ... . . 451 



577. Californian Creeper . .... 452 



578. Slender-billed Nuthatch, feather 453 



579. White-breasted Nuthatch, feather ... . 453 



580. White-breasted Nuthatch, head ... . 453 



581. Red-breasted Nuthatch, head . . . 454 



582. Plain Titmouse . .456 



583. Bridled Titmouse, head . . . 457 



584. Chickadee, head . . 457 



585. Wren-Tit .... .460 



586. Bush-Tit ... .461 



587. Lloyd Bush-Tit . . . 462 



588. King-let, bill 463 



589. Golden-crowned Kinglet, head . . 463 



590. Ruby-crowned Kinglet, head 464 



591. Gnatcatcher, tail . . 465 



592. Blue-gray Gnatcatcher, head . 465 



593. Plumbeous Gnatcatcher, feather . . 465 



594. Black-tailed Gnatcatcher., feather . 465 



595. Blue-gray Gnateatcher 465 



596. Plumbeous Gnatcatcher . . 466 



597. Townsend Solitaire . 467 



598. Wood Thrush . .469 



599. Robin, bill . .472 



600. Robin .... 472 



601. Bluebird 475 



