This species is similar to the last but the back, wings and tail are darker and the purplish color of the preceding species is replaced by a more pinkish shade. The nesting habits and eggs are the same as those of the eastern Purple Finch; size of eggs .85 × .60. Data.--Willis, New Mexico, June 23, 1901. Nest made of twigs and rootlets and lined with horse hair. Collector, F. J. Birtwell. 519. HOUSE FINCH. _Carpodacus mexicanus frontalis._ Range.--United States west of the Plains and from Oregon and Wyoming to Mexico. This is one of the best known of western birds, and nests commonly in all situations from trees and bushes to vines growing on porches. Their nests are made of rootlets and grasses and are lined with horse hair. Their nesting season includes all the summer months, they raising two and sometimes three broods a season. The three to five eggs are pale greenish blue with a few sharp blackish brown specks about the large end. Size .80 × .55. 519b. SAN LUCAS HOUSE FINCH. _Carpodacus mexicanus ruberrimus._ Range.--Southern Lower California. A slightly smaller variety of the preceding. 519c. SAN CLEMENTE HOUSE FINCH. _Carpodacus mexicanus clematis._ Range.--San Clemente and Santa Barbara Islands. Somewhat darker than the last. 520. GUADALUPE FINCH. _Carpodacus amplus._ Range.--Guadalupe Island, Lower California. Similar to the House Finch, but deeper red and slightly larger. Their nesting habits and eggs are precisely like those of the House Finch but the eggs average larger; size .85 × .60. 520.1. MCGREGOR'S HOUSE FINCH. _Carpodacus mcgregori._ Range.--San Benito Island, Lower California. A newly made species, hardly to be distinguished from the last. Eggs probably the same. [Illustration 328: Greenish blue.] [Illustration: Greenish blue.] [Illustration: 518--519.] [Illustration: deco.] [Illustration: left hand margin.] Page 327 521. CROSSBILL. _Loxia curvirostra minor._ Range.--Northern North America, breeding in the Alleghanies and from northern New England northward; winters south to the middle portions of the United States and casually farther. The birds are very curious both in appearance and actions, being very "flighty" and restless, and apt to remain to breed on any of the mountains. They build during March or April, making their nests of twigs, rootlets, moss, feathers, etc., and placing them in forks or on branches of trees (usually conifers) at any height from the ground. The eggs are greenish white, spotted with brown and with lavender shell markings; size .75 × .55. 521a. MEXICAN CROSSBILL. _Loxia curvirostra stricklandi._ Range.--Mountain ranges from central Mexico north to Wyoming. A larger variety of the preceding. The eggs will not differ except perhaps a trifle in size. 522. WHITE-WINGED CROSSBILL. _Loxia leucoptera._ Range.--Northern North America, breeding in the Alleghanies and from northern Maine northward; winters to middle portions of the United States.