黑叉尾海燕 hēichāwěihǎiyàn Swinhoe's storm petrel Origin Definitions Defs Strokes Stroke Words Sentences Sents 烟黑叉尾海燕 yānhēichāwěihǎiyàn Matsudaira's storm petrel a species of seabird, Hydrobates matsudairae, found in the Pacific Ocean and migrating through the waters around China, characterized by its dark plumage and forked tail