1162. Oceanodroma tristrami

1162. JAPANESE BLACK PETREL.
OCEANODROMA TRISTRAMI.
Oceanodroma tristrami, Stejn. M.S. Salvin, Cat. B. Br. Mus. xxv. p. 354 ; O. melania (Seeb., nec. Bp.), B. Jap. Emp. p. 270 (1890).
Male ad. (Japan). Anterior portion of head all round sooty greyish brown (decidedly darker than in O. homochroa), changing gradually to sooty blackish slate on hinder crown, occiput, and hind neck, and to deep greyish sooty brown on fore neck and chest ; rest of under parts light greyish sooty brown, each feather indistinctly tipped with darker (colour of chest), producing a very faint transversally mottled appearance, the under tail coverts, however, uniform, though the colour gradually becomes darker towards ends of longer feathers ; under wing-coverts uniform light greyish sooty brown, those along edge of wing much darker, with pale margins ; back, scapulars, and upper rump sooty slate-colour, each feather with one or two, very indistinct darker bars, and tipped with a mure decided slaty hue ; lesser wing-coverts and tertials darker greyish sooty brown, the longer of the latter narrowly margined with paler ; middle and greater wing-coverts and innermost secondaries light greyish brown, the margins of the secondaries and approximate coverts sooty-blackish ; lower rump light greyish brown (like large wing-coverts) ; upper tail-coverts and tail dark greyish brown (much paler than remiges), each feather showing a subterminal broad transverse spot of a darker shade of the same colour ; bill and feet black. Total length (skin) about 9 inches, wing 6.20, tail 3.78, forked for 1.6, culmen 0.70, depth of bill through middle 0.20, tarsus 1.10, middle toe with claw 1.12.
Hab. Japan.
Not having been able to examine a specimen of this Petrel, I have, as before, been obliged to copy the description in the Brit. Mus. Catalogue. Nothing appears to be on record respecting the habits or nidification of this species.

BookTitle: 
A Manual Of Palaearctic Birds
Reference: 
Dresser, Henry Eeles. A Manual of Palaearctic Birds. Vol. 2. 1903.
Title in Book: 
1162. Oceanodroma tristrami
Book Author: 
H. E. Dresser
CatNo: 
1162
Year: 
1903
Page No: 
846
Common name: 
Japanese Black Petrel
M_ID: 
1929
M_CN: 
Tristram's Storm Petrel
M_SN: 
Oceanodroma tristrami
Volume: 
Vol. 2
id: 
10418

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