California Chickadee Smaller than English sparrow. Upper parts 

 grayish, tinged with brown; head and throat black; abdomen white; 

 sides slightly tinged with brown. 



Lutescent Warbler Smaller than English sparrow. Upper parts 

 olive green; underparts yellow; wings darker with indications of white. 



Traill Flycatcher Smaller than English sparrow. Upper parts 

 light olive brown or dark gray; under parts grayish; indications of 

 white around eyes. 



Western Gull Larger than crow. Head, neck, tail, and under 

 parts white; back gray; outer parts of wings black; bill long and en- 

 larged near end. Found about San Francisco bay. 



Western Nighthawk Robin size. Upper parts brown, black, and 

 white spots; under parts with same color, but more uniformly ar- 

 ranged; tail slightly forked; bill very short, and broad at base. 



Valley Partridge or Quail Robin size. Upper parts grayish brown; 

 under parts white and black, washed with brown; forehead and throat 

 black with white border. Plume falls forward toward bill. 



Mountain Partridge or Quail Little larger than robin. All of 

 upper parts brownish-gray; throat chestnut with white band; breast 

 grayish; sides and abdomen washed with brown. Plume long and 

 slender, droops toward back. 



Turkey Vulture or Turkey Buzzard Larger than crow. Black all 

 over except head and neck, which are red and unfeathered. 



Great Blue Heron 

 [17] 



