Acanthus

In Greek mythology, Acanthus (Ancient Greek: Ακανθος Akanthos means 'thorn') was the son of Autonous (son of Melaneus) and Hippodamia. He was the brother of Acanthis, Erodius, Anthus and Schoeneus. The bird he turned into has been identified as the siskin, the linnet, the blue tit or other birds, but with little certainty. Perhaps he is supposed to be the male of the bird his sister Acanthis turned into.