16 EGG8 OF NORTH AMERICAN BIRDS. 



104. Stormy Petrel, Procellaria pelagica. Eggs, 1, white, 

 elliptical, sparingly spotted with reddish on the large end; 

 .80 -)- 1.13 to .85 -|- 1.15. Occurs in the Atlantic Ocean ; on 

 the American side, on the south Banks of Newfoundland, and 

 along the west coast of Europe and Western Africa. 



105. Fork-tailed Petrel, Oceanodroma furcata. Eggs, 

 oval, dirty, chalky white ; 1.00 + 1.35 to 1.03 -j- 1.40. Occurs 

 in the North Pacific, southward, on the American coast, to 

 Oi'egon. Breeds in Alaska and on the Aleutian Islands, in 

 June. 



106. League's Petrel, Oceanodroma leucorhoa. (Type, 

 Plate II.) Eggs, 1, white, often spotted with minute dots of 

 reddish on larger red, often forming a ring; .90 -j- 1.25 to 1.00 

 -\- 1.35. Eggs placed in holes dug by the bii'd. Breeds from 

 Maine and the Hebrides, northward, on the coast, and on 

 islands of the Pacific. 



107. Black Petrel, Oceanodroma melania. Eggs, un- 

 known. Occurs in South Pacific, northward, to Lower Cali- 

 fornia. 



108. Ashy Petrel, Oceanodroma homochroa. Eggs, un- 

 known. Occurs on the coast of California. 



109. Wilson's Petrel, Oceanites oceanicus. Eggs, un- 

 known. Occurs in the North Atlantic and Southern Oceans, 

 but does not breed on the coast. 



110. White-bellied Petrel, Cymodroma grallaria. Oc- 

 curs in tropical oceans ; accidental on the coast of Florida. 



111. White-faced Petrel, Pelagodroma marijia. Eggs, 

 unknown. Occurs in the south Atlantic and Southern Oceans ; 

 casual off the coast of Massachusetts. 



