ADDENDA 489 



286. Hsematopus pallictus Temm. OYSTER- CATCHER. 



Like bachmani but belly white. 

 2970. Dendragapus obscurus sierrae. Chapm. SIERRA GROUSE. 



Like obscurus but back less black, tail band narrower, neck tufts almost 

 wanting. 

 301. Lagopus lagopus lagopus (Linn.). WILLOW PTARMIGAN. 



Tail black at all seasons. 

 337d. Buteo borealis harlani (And.}. HARLAN HAWK. 



Dark, with mottled tail. Status doubtful. 



339- Buteo lineatus lineatus. (Gmel.). RED-SHOULDERED HAWK. 

 37ii. Otus asio gilmani Swarth. SAHUARA SCREECH OWL. 



Much like cineraceus but slightly smaller and paler, of an earthy cast, 

 with dark markings restricted. 

 3Qoa. CerylealcyoncaurinaGrmn. NORTHWESTERN BELTED KINGFISHER. 



Like alcyon, but size throughout greater, especially flight feathers. 

 Male: wing 6.35, tail 3.80, bill 2.25. 

 393. Dryobates villosus villosus (Linn.) HAIRY WOODPECKER. 



Like leucomelas but smaller. Length: 9-10, wing 4.50-5, tail 3.50, bill 



393h. Dryobates villosus leucothorectis Oberh. WHITE-BREASTED WOOD- 

 PECKER. 



Much like villosus but decidedly smaller; wing coverts almost always 

 without white spots. 

 414!). Colaptes chrysoides mearnsi Ridgw. MEARNS GILDED FLICKER. 



Similar to chrysoides but decidedly larger and paler, top of head more 

 strongly cinnamomeous, black bars on back narrower, spots on outer 

 webs of primaries more conspicuous, gray of throat lighter, aad spots on 

 under parts usually smaller. 

 42Od. Chordeiles virginianus hesperis Grinn. PACIFIC NIGHTHAWK. 



Adult male darker than in henryi or sennetti, blackish gray rather than 

 brown; wing coverts mottled with silvery gray. Adult female gray 

 rather than tawny. 

 439.1. Uranomitra salvini (Brewst.). SALVIN HUMMINGBIRD. 



Top and sides of head with sides of neck bright metallic blue; hind 

 neck and part of back, bluish-green; tail dark metallic green or bronze 

 green. Wing: 2.07, tail 1.27. 



463. Empidonax flaviventris (W. M. & S. F. Baird). YELLOW-BELLIED 

 FLYCATCHER. 



Adults. Above olive green, below yellow, including throat; wings 

 and tail fuscous, wings with two bars. 

 4643. Empidonax difficilis cineritius Brewst. SAN LUCAS FLYCATCHER. 



Like difficilis but duller and grayer above, paler below. 

 484. Perisoreus canadensis canadensis (Linn.). CANADA JAY. 



Blackish of occiput extending around eye. 

 496a. Tangavius seneus aeneus (Wagl.) BRONZED COWBIRD. 



Like the red-eyed but slightly larger, bill relatively stouter; female 

 grayish. 

 528b. Acanthus linaria rostrata (Coues). GREATER REDPOLL. 



Like linaria but larger. Length about 5.25-5.75. 

 540. Pooecetes gramineus gramineus (Gmel.). VESPER SPARROW. 



Like confinis but wing, tail, and tarsus shorter. 



542d. Passerculus sandwichensis nevadensis Grinn. NEVADA SAVANNAH 

 SPARROW. 



Resembling alaudinus but much paler throughout in all plumages; 

 white replacing buff, making black streaks more conspicuous, and hazel 

 areas restricted. Rectrices with white edges. 



574. ib. Amphispiza nevadensis canescens Grinn. CALIFORNIA SAGE 

 SPARROW. 



Like nevadensis but smaller and slightly darker. 

 58ij. Melospiza melodia juddi Bish. DAKOTA SONG SPARROW. 



Similar to melodia but superciliary and sides of neck paler, black centre 

 of interscapulars broader. Length: 6.75, wing 2.62, tail 2.78, bill .51. . 



