Fisher Petrel
100. Æstrelata fisheri. 7 inches.
This is a handsome bird known only from the type specimen taken off Kadiak Island, Alaska, by Mr. Fisher.
Least Petrel
103. Halocyptena microsoma. 5½ inches.
This is the smallest of the family. Their plumage is entirely dark sooty.
Nest.—They have been found breeding on the islands of Lower California, and they probably do on others farther south. The single egg of this bird is white with a wreath of tiny brown specks about the larger end.