100 EGGS OF NORTH AMERICAN BIRDS. 



.60 -j- .80 to .65 -j- .85. Nests placed in trees and bxishes, 

 composed of twigs, grass, and weeds, lined with soft grass and 

 hair. Breeds in the middle province of the United States, in 

 May. 



519«. Saint Lucas House Finch, Carpodaciis mexicmins 

 ruherrimtis. Eggs, unknown, but probably indistinguishable 

 from those of No. 519. Breeds in Lower California and adja- 

 cent parts of Sonora. Described by Ridgway in " Manual of 

 North American Birds," 1887, 391. 



520. Guadalupe House Finch, Carpodacus amphis. Eggs, 

 probably not to be distinguished from those of No. 519. 

 Breeds on Guadalupe Island, Lower California. 



521. American Crossbill, Xocei« ci^ryw-osiJra minor. Eggs, 

 4 or 5, pale bluish or greenish white, sparingly spotted and 

 scrawled with dark brown and lilac ; .52 -\- .73 to .56 -f- .75. 

 The sparse markings distinguish them from those of No. 522. 

 Nests placed in trees, composed of twigs, strips of bark, lined 

 with moss. Breeds in Northern North America, south to 

 Massachusetts and along the Alleghanies, in March, April, and 

 August. 



521a. Mexican Crossbill, Loxia curvirostra stricklandi. 

 Eggs, probably indistinguishable from those of No. 521. 

 Breeds in Colorado, Southern Ai'izona, and the highlands of 

 Mexico. 



522. White-winged Crossbill, Loxia leucoptera. Eggs, 

 4 or 5, oval, pale blue, thickly dotted on the larger end with 

 black and ashy lilac ; .56 -\- .80 to .58 -|- .82. Nests composed 

 of twigs, and lined with fine shreds of inner bark and haii-. 

 Breeds in the northern parts of North America, south to 

 Canada, in April and August. 



.523. Aleutian Leucosticte, Leucosticte griseomccha. 

 Eggs, 4 or 5, oval, grayish white; .70 -f- -95 to .72 -|- -97. 

 Nests composed of a little grass, placed on the ground. 

 Breeds in the Aleutian Islands, in May. 



524. Grat-crowned Leucosticte, Leucosticte tephrocotis. 

 Eggs, probably not dissimilar to those of No. 523, but I have 



