Altsteirer,also known as the Styrian Hen and Chicken, Slovene: Štajerska kokoš or Štajerka, German: Altsteirer Huhn, is an autochthonous breed of domestic chicken originating in Slovenia and Austrian state Styria.The Styrian Hen is known as the only autochthonous (native) chicken breed of Slovenian area, with all other breeds being traditional at most, hence introduced in the past and consequently adapted to country's conditions.The Altsteirer's set of traits suggests the breed may share a common descent with other Mediterranean chicken breeds.