Costa Hummingbird
430. Calypte costæ. 3 inches.
A slightly smaller bird than the last, with the crown and the lengthened feathers of the neck which form a ruff of the most brilliant violet or amethyst, back and rump of a greenish bronze color, under parts whitish with a green cast on the sides. Female lacks the brilliant colors of the male on the head and neck and shows no sign of a ruff.
Nest.—Is usually placed in the forks of small shrubs near the ground, seldom above six feet from it, and made of plant down, with shreds of weeds, bark and lichens worked into the outside portion, and lined with a few soft feathers. Two pure white eggs (.48 ×.32).