88 EGGS OF NORTH AMERICAN BIRDS. 



the Upper Mississippi Valley and Great Lake region, east to 

 New York, in April. 



474c. Desert Horned Lark, Otocoris alpestris arenicola. 

 Eggs, indistinguishable in color from those of No. 474, but are 

 a little smaller ; .62 -\- .85. Breeds in the Rocky Mountain 

 region of the Great Basin of the United States, in April. 



474c?. Texan Horned Lark, Otocoris alpestris giraudi. 

 Eggs, slightly smaller than those of No. 474 (.(50 -\- .83), but 

 otherwise similar. Breeds in Eastern and Southeastern Texas, 

 in March. 



474e. Mexican Horned Lark, Otocoris alpestris chryso- 

 Icema. Eggs, in color similar to those of No. 474, but are 

 smaller; .63 -|- .85. Breeds in Southern Arizona and Southern 

 New Mexico, south into Mexico, in March. 



474y. Ruddy Shore Lark, Otocoris alpestris rubea. Eggs, 

 smaller than those of No. 474 (.59 -J- .80), but otherwise simi- 

 lar. Breeds in California, in March. 



474^. Streaked Horned Lark, Otocoris alpestris strigata. 

 E^rS'S indistinguishable from those of No. 474. Breeds in the 

 coast region of Washington Territory, Oregon, and Britisli 

 Columbia. 



Family XLVH. — CORVID^. Crows, Jays, Magpies, ETr. 



Eggs, usually greenish or brownish green, handsomely 

 spotted. Nests made of sticks and other coarse material, and 

 placed in trees. 



475. American Magpie, Pica pica /mdso?iica. Eggs, 6 to 

 9, oval, grayish or yellowish white, spotted, blotched, and 

 dotted with purplish brown, the spots sometimes becoming 

 confluent. Nests, globular, very large, made of sticks and 

 other coarse material, and placed in trees; .61 -\- 1.00 to .92 -|- 

 1.26. Breeds in Northern and Western North America, in 

 May. 



476. Yellow-billed Magpie, Pica nuttalH. Eggs are 

 perhaps a little smaller, as a rule, than those of No. 475 (.85 -f- 



