Cassin Auklet
16. Ptychoramphus aleuticus. 9 inches.
A plain appearing bird, breast and throat grayish and belly white with blackish upper-parts relieved only by a small white spot over the eye. This Auklet is fairly abundant on the Farallones and islands off the Lower California coast.
Nest.—A single egg, dull white, the inside of the shell being a pale green when held to the light. These are laid in burrows or tunnels under the rocks, at times three or four feet long (1.80 × 1.30).
Range.—Pacific coast of N. A., Alaska to Lower California.