872 THE KAEDING PETREL. 
coast of Oregon and Vancouver Island, northward on the American side to the 
Aleutians. 
Range in Washington.—‘Seen near Cape Flattery.” Breeding range in- 
cludes the Olympiades, but no colonies have yet been discovered. 
Authorities.—| ‘Fork-tailed petrel,” Johnson, Rep. Gov. W. T. 1884 (1885), 
p. 23.] Dawson, Auk, Vol. XXV. Oct. 1908, p. 485. (A. W. Anthony im epist.). 
Specimens.—( U. of W.) Prov. C. 
IT is matter of no little surprise that we have not yet discovered Fork- 
tailed Petrels among the local breeding birds of the Olympiades. Mr. Finley 
assures me that they abound upon the Three Arch Rocks of Oregon and their 
breeding range extends north to the Arctic Circle. Mr. A. W. Anthony has 
seen them in winter off our coast, and there is every reason to suppose that 
local breeding grounds will yet come to light. 
In habits these Petrels do not differ materially from the well-known 
Kaedings. Indeed, Mailliard found these two species nesting side by side on 
St. Lizaria, near Sitka, and the only difference discovered was that the eggs of 
furcata were a trifle larger and much more advanced in incubation. 
No. 354- 
KAEDING’S PETREL. 
A. O. U. No. 105.2. Oceanodroma kaedingi Anthony. 
Description.—./du/t: General plumage sooty brown, clearest on belly, dark- 
ening on head, back, and breast, blackening on lesser wing-coverts, flight-feathers, 
and tail, lightening to grayish brown on middle and greater coverts, especially 
upon the edges of the latter; the longer upper tail-coverts chiefly white, with sooty 
shaft-lines, the longest ones also narrowly tipped with blackish, the lateral lower 
coverts more or less extensively white in continuation of that of the upper coverts. 
Bill and feet black. Downy young: Entirely sooty black. Length of adult about 
8.00 (203.2); wing 5.70 (144.8) ; tail 3.00-3.50 (76.2-88.9), forked .60-.80 (15.2- 
20.3); bill (chord of culmen) .60 (15.2); tarsus .88 (22.4). 
Recognition Marks.—Chewink size but appearing larger by reason of long 
wings; dark brown plumage with white rump; fluttering erratic flight. 
Nesting.—Nest; a few grasses or none, at end of burrow 2 to 3 feet in 
length, in soil of sea-girt rock. Egg: single, nearly equal-ended, white, nearly 
immaculate, or with ring of reddish brown dots about larger end. Season: June- 
July; one brood. 
General Range.—The North Pacific Ocean; breeds on islands from the 
western coast of Mexico north to Sitka. 
Range in Washington.—Breeding on the Olympiades; Erin, Alexander - 
Islet, Dhuoyuatzachtahl, Carroll Islet, Wishaloolth and Tatoosh—probably also 
others of the group. 
