CROSSBILL.
521. Loxia curvirostra minor. 6 inches.
Found throughout the greater part of North America, and breeds in suitable locations on the mountain sides among the coniferous trees. On the Pacific coast, breeding from Alaska to southern California. In abundance they vary each year greatly, according to the food supply of cones in the evergreen trees from which they secure their seed supply; their twisted bill quickly opening up the cones and cleaning out the small seeds. Their nests are made of fine roots and grasses, and three or four eggs, greenish white, spotted and lined with shades of brown, are laid (.75 × .55).