Sterna dougallii
Langdon 1879 says “One specimen only” but gives no details. Kemsies and Randle 1953 mention a sight record from Kellogg Pond (Hamilton County) on April 24 and 26, 1949, but treat the record as hypothetical in the absence of a specimen. This species is not included in the state lists for Ohio*, Kentucky or Indiana, and is accidental away from the Atlantic and Gulf coasts.
*An eBird report, with photographs, from Lake Erie on July 9, 2024 has not been resolved by the Ohio Bird Records Committee, as of September 5, 2024.