Ashy Petrel, 2024. 

 Asia fl.amm.eus, 1087. 



otus wilsonianus, 1080. 



* wilsonianus, 10S0. 

 Aslragalinus lawrencei, 197. 



psaltria hesperophilus, 191. 

 tristis salicamans, 187. 

 *Astur atricapillus atricapillus, 1668. 



* stiiatulus, 166S. 

 gentilis atricapillus, 1668. 



slriatulus, 1668. 

 Asyndesmus lewisi, 1030. 

 Auburn Canyon Wren, 691. 

 Audubon's Caracara, 1643. 

 Audubon's Warbler, 472. 

 Auk, Cassin's, 1467. 



Parrot, 1474. 

 Auklet, Aleutian, 1467. 



Cassin's, 1467. 



Horn-billed, 15 18. 



Paroquet, 1474. 



Pug-nosed, 1474. 

 Auriparus flaviceps flaviceps, 623. 

 Avocet, American, 1191. 



B 



Bceolophus inornatus griseus, 602. 

 inornatus, 601. 

 murinus, 602. 

 Baird's Cormorant, 1956. 



Sandpiper, 1235. 



Wren, 667. 

 Balanosphyra formicivorus bairdi, 



1023. 

 Bald Eagle, Southern, 171 1. 

 Baldpate, 1761. 

 Band-tailed Buzzard, 1687. 

 Band-tailed Pigeon, 1 1 53 . 

 Bank Swallow, 533. 

 Barlow's Chickadee, 620. 

 Barn Owl, American, 1070. 

 Barn Swallow, 536. 

 Barrow's Golden-eye, 1817. 

 Barlramia longicauda, 1277. 

 Bartramian Sandpiper, 1277. 

 Bartramian, The, 1277. 

 Batchelder's Woodpecker, 992. 

 Bay-winged Bunting, 241. 

 Beal's Petrel, 2013. 

 Beautiful Bunting, 412. 

 Bee Martin, 849. 

 Beetle-head, 1290. 

 Belding's Marsh Sparrow, 256. 

 Belding's Plover, 1328. 

 Bell's Sparrow, 277. 

 Belted Kingfisher, Western, 1049. 

 Bendire's Crossbill, 147. 



Screech Owl, 1 103. 



Thrasher, 697. 

 Bewick's Wren, 667. 



Bicolored Redwing, 118. 



Billy Owl, 1 120. 



Bird Hawk, 1657. 



Bird of Washington, 171 1. 



Bittern, American, 1916. 



Least, 1920. 

 Black-and-White Creeper, 437. 

 Black-and-White Warbler, 437. 

 Black-backed Three-toed Wood- 

 pecker, 1006. 

 Black-bellied Plover, 1290. 

 Black-bellied Tree Duck, 1875. 

 Black-billed Magpie, 31. 

 Blackbird, California Brewer, 84. 



Brewer's, 83. 



Marsh, 114. 



Red-and-white-shouldered, 104. 



Red-shouldered, 114. 



Red-winged, 114. 



Rusty, 81. 



Skunk, 136. 



Tricolored, 104. 



Tricolored Red-winged, 104. 



Yellow-headed, 124. 

 Black Brant, 1869. 

 Black-breasted Woodpecker, 1016. 

 Black-chinned Hummer, 954. 

 Black-chinned Sparrow, 309. 

 Black Coot, 1830. 

 Black-crowned Night Heron, 1910. 

 Black Curlew, 1924. 

 Black Darter, 1935. 

 Black Duck, 1757, 183 1. 

 Black Eagle, 171 1. 

 Black-footed Albatross, 1984. 

 Black Fork-tailed Petrel, 2027. 

 Black-head, 1807. 

 Black-headed Grosbeak, 419. 

 Black-headed Grosbeak, Pacific, 420. 



Rocky Mountain, 419. 

 Black-headed Turnstone, 1342. 

 Black Mallard, 1757. 

 Black Merlin, 1633. 

 Black-necked Stilt, 1204. 

 Black Oyster-catcher, 1346. 

 Black Petrel, 2027. 

 Black Phoebe, 868. 

 Black Pigeon-Hawk, 1633. 

 Black Rail, California, 1549. 



Farallon, 1549. 



Little, 1549. 



Pacific, 1549. 

 Black-shouldered Kite, 1648. 

 Black-tailed Gnat-catcher, 819. 

 Black-tailed Shearwater, 2009. 

 Black Tern, 1460. 

 Black-throated Blue Warbler, 468. 

 Gray Warbler, 479. 

 Green Warbler, 488. 

 Black Turnstone, 1342. 



Black-vented Shearwater, 1998. 

 Black Woodpecker, 1030. 

 Blanding's Finch, 386. 

 Blasipus heermanni, 1428. 

 Bleached Horned Lark, 842. 

 Blind Rail, 2057. 

 Blue-bill, 1807, 1810, 1840. 

 Bluebird, Arctic, 781. 



California, 774. 



Mexican, 774. 



Mountain, 781. 



Townsend's, 774. 



Western, 774. 

 Blue Crane, 1888. 

 Blue Darter, 1668. 

 Blue-fronted Jay, 65. 

 Blue Goose, 1849. 

 Blue Grosbeak, 413. 

 Blue Grosbeak, Arizona, 413. 

 California, 413. 

 Western, 413. 

 Blue Grouse, 1589. 

 Blue Gull, 1366. 

 Blue Jay, 65. 

 Blue-winged Teal, 1769. 

 Boatswain, 1360. 

 Bobolink, 136. 

 Bog-bull, 1916. . 

 Bohemian Waxwing, 546. 

 Bombycilla cedrorum, 550. 

 garrula, 546. 



pallidiceps, 546. 

 Bonaparte's Gull, 1422. 



Rosy Gull, 1422. 

 Bonasa umbellus sabini, 1596. 

 Boreal Flicker, 1037. 

 Bo's'n-bird, 1933. 

 Botaurus lentiginosus, 1916. 



* Brachyramphus hypoleuca, 1484. 

 Brachyramphus marmoratus, 1484. 

 Brandt's Cormorant, 1948. 

 Branta bemicla bemicla, 1869. 



nigricans, 1869. 

 canadensis canadensis, 1858. 

 hutchinsi, 1863. 

 minima, 1867. 



* nigricans, 1869. 

 Brant-bird. 1337. 

 Brant, 1869. 

 Brant, Black, 1869. 



Gray, 1S53. 



Speckled, 1853. 



White, 1845. 

 Brant Snipe, 1337. 

 Brewer's Blackbird. 83. 



California, 84. 

 Brewer's Sparrow, 312. 

 Brewster's Flycatcher, 884. 

 Brewster's Poorwill, 1054. 

 Bridge Pewee, 867. 



2 10 J. 



