This section is from the book "Bird Guide: Water Birds, Game Birds And Birds Of Prey East Of The Rockies", by Chester A. Reed. Also available from Amazon: The Bird Book.
109. Oceanites oceanicus. 7 in.
Tail square at end; coverts white, not tipped with black; legs long, with yellow webs. This species is very abundant on our Atlantic coast from July to Sept.. spending the summer here after having nested in the Kerguelen Is. in February. Their upper parts are much more darker than those of Leach Petrel.
Their note is a weak twittering "keet-keet."
 
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