USFS Blue Wing was an American fishery patrol vessel that operated in the waters of the Territory of Alaska. She was part of the United States Bureau of Fisheries (BOF) fleet from 1924 to 1940. She then served as US FWS Blue Wing in the fleet of the Fish and Wildlife Service from 1940 until at least 1951. Before her United States Government service, she was the commercial purse seiner August. In private ownership after the conclusion of her U.S. Government career she was renamed El Don.