Karl Heineken (died 4 January 1830), also known as Carlos Heineken, was a German medical doctor and ornithologist. He lived on Madeira, a Portuguese island in Macaronesia, from 1826 until his death. He described the Trocaz pigeon, a Madeiran endemic bird species.^[1][2] He is commemorated in the scientific name of a subspecies of blackcap, Sylvia atricapilla heineken.

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