Stock Photo: Striated Caracara or Johnny Rook Phalcoboenus australis on the Falkland Islands The striated caracara is a strictly protected bird of prey living only on some islands like the Falkland Islands in the subantarctic region He is living mainly of carrion or. Striated Caracara or Johnny Rook Phalcoboenus australis on the Falkland Islands The striated caracara is a strictly protected bird of prey living only on some islands like the Falkland Islands in the subantarctic region He is living mainly o