The Collared Petrel — Æstrelata Brevipes (Peale)
A single example of this Petrel was obtained off the coast of Wales in December 1889. The southern and western Pacific appear to be its true home.
The crown is slaty grey; rest of upper parts darker, becoming browner on the wing coverts. Forehead and throat white; rest of under parts white, sometimes tinged with grey. Length 11·5 in.; wing 8·7 in.