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NORTH AMERICAN BIRDS. 
Genus LOFHORTYX, Bonaparte. (Page 112.) 
Common Characters. Anterior half of the body, and the upper parts generally, 
plumbeous ; the feathers of neck above, and on the sides, pointed and margined 
with black. There is a white bar across the head above, between the eyes, 
which; passing backwards, is bordered behind and internally by black ; a second 
commences at the posterior border of the eye and then borders the black of the 
chin and throat laterally and behind, the black reaching up to the eye and 
bordered anteriorly by a white line from eye to bill ; belly pale buff, with a large 
spot in the centre ; the flanks streaked with white. Length, 9.50; wing, 4.32; 
tail, 4.12. 
L. californicus. Vertex and occiput light smoky olive-brown; forehead 
whitish ; patch in the middle of the belly orange-chestnut ; feathers of 
breast with narrow black edges ; sides of body olivaceous-plumbeous. “ Iris 
hazel” (Aud.). Eggs creamy-white, freckled or blotched, finely or coarsely, 
with drab to chestnut-brown. Hah. Pacific slope of United States ; south 
to Cape St. Lucas. ( California Quail.) 
L. gambeli. Vertex and occiput clear chestnut-brown ; forehead blackish ; 
patch in middle of belly black ; none of the belly-feathers with black edges ; 
sides of body bright chestnut. Iris reddish-white (Coues) ; “ brown ” (Coues 
and Pope). Eggs creamy-white, with blotches of drab chestnut. Hah. 
Colorado Valley of United States, north to Southern Utah, and east to 
Western Texas. 
Genus CALLIFEFLA, Wagler. (Page 112.) 
C. squamata. The single United States species is of a bluish tint, without any marked 
contrast of color. The feathers of the neck, breast, and belly have a narrow edging of 
black. Length, about 9.50 ; wing, 4.80. Head with a soft short crest of white feathers 
springing from the crown. Head plain light brownish-gray, paler on the throat ; neck 
and breast light bluish-plumbeous, lighter and more glaucous beneath, each feather con- 
spicuously bordered terminally with black, producing a scaly appearance j flanks grayish- 
brown, streaked with white. Body above, with wings and tail, plain brownish-gray, the 
tertials bordered internally with white. Abdomen sometimes with a patch of dark rusty. 
Sexes alike. Length, 9.50; wing, 4.80; tail, 4.10. Hah. Valley of Rio Grande, and 
west to Tucson. {Blum or Scaled Partridge.) 
Genus CYRTONYX, Gould. (Page 113.) 
C. massena. Male. Head striped with white, black, and lead-color ; chin black. 
Leathers above streaked centrally with whitish, those on the outer surface of the wings 
with two series of rounded black spots. Central line of breast and belly dark chestnut ; 
the abdomen, thighs, and crissum black ; the sides of breast and body lead-color, with 
round white spots. Legs blue. Length, 8.75 ; wing, 7.00 ; tail, 2.50. 
Female. Prevailing color light vinaceous-cinnamon, the upper parts barred and 
streaked as in the male! Head without white or black stripes. Sides with a few narrow, 
irregular streaks of black. 
Young'. Somewhat similar to the adult female, but lower parts whitish ; the feathers, 
especially on the breast, with transverse blackish spots on both webs. 
Hab. Rio Grande region (occasional near San Antonio) and table-lands of Mexico. 
Tucson and Fort Whipple, Arizona. Eggs unknown. {Massena Quail.) 
