Rallus crepitans.

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1808–13.  The Clapper Rail, or as it is generally called, the Mud-hen, soon announces its arrival in the salt marshes, by its loud, harsh and incessant cackling, which very much resembles that of a Guinea fowl.—A. Wilson, ‘American Ornithology’ (1829), iii. 177. (N.E.D.)

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