38 EGG CHECK LIST OF NORTH AMERICAN BIRDS, 
470. Mexican Turkey—MELEAGRIS GALLOPAVO. Eggs and nesting 
habits similar to the common Wild Turkey. Mexico. © 
470a. Wild Turkey—-MELEAGRIS GALLOPAVO AMERICANA. Dark buff 
or cream color, thickly sprinkled with rusty-brown or umber spots; ten to 
fifteen; 2.35 by: 1:87. « Nests onthe ground. Arpad = 
471. Dusky Grouse — CANACE opscuRA. Pale cream-color, marked 
with small round spots of reddish-brown; these are more numerous 
towards the greater end; six to ten; 1.95 by 1.45. Nests on the ground. 
; . ] Rocky Mt. region of U.S. 
4716. Richardson’s Grouse—CANACE OBSCURA RICHARDSONI. Cream- 
color, marked with small dots of reddish brown, similar to those of the 
Dusky Grouse; six to ten; 1.75 by 1.35. Rocky Mts. of British America. 
472. Canada Grouse; Spruce Partridge—-CANACE CANADENSIS. Fawn- 
color, irregularly splashed with different tints of brown; eight to fourteen; 
1.72-by 1.21. Nests on the ground. British America—Northern U. S. 
473. Ruffed Grouse—BONASA UMBELLUS. Dark cream color, some- 
times faintly blotched with a darker shade of the same; seven to twelve; 
1.60 by 1.15. Nests on the ground. E; N. A. 
4736. Oregon Ruffed Grouse--BONASA UMBELLUS SABINEI. Dark 
cream-color, unspotted; six to fourteen. Nests on the ground. (See 
Notes. ) _ Rocky Mts. to Pacific Coast of Oregon. 
474. Willow Ptarmigan—LaGopus ALBUS. Cream-color, tinged with 
reddish shading, marked with large, confluent blotches of dark chestnut; 
ten to sixteen; 1.85 by 1.20. Nests on the ground. Arctic America. 
= 
475. Rock Ptarmigan—LAGOPUS RUPESTRIS. Deep reddish-cream 
color, nearly covered by blotches of reddish chestnut; four to eight; 1.63 
by 1.187 Nests placed on the ground, Arctic A. 
477. Prairie Hen—cuprmonia cupipo.  Light-clay or dark tawny. 
brown; sometimes, not always, sprinkled with brown; eight to twelve; 
1.75 by 3.25. Nests on the ground. Prairie country of U.S. * 
478a. Common Sharp-tailed Grouse—-PEDIGECETES PHASIANELLUS COL- 
uMBIANUs. Light clay to a dark rusty-brown, generally not marked, but 
frequently speckled with fine dottings of darker brown; ten to fifteen; 
1.80 by 1.30. Nests on the ground. Plains and Prairies of U.S. 
479. Sage Cock—CENTROCERCUS UROPHASIANUS. Light greenish-drab 
to a drab shaded with buff, thickly freckled with small roundea spots of 
reddish-brown and dark chestnut; ten to fifteen; 2.20 by 1.50. Nests on’ 
the ground. (See Notes.) 
