Wombats and great horned owls and letters that the owl deliver

Please I live in Australia and there are no Australian animals in Minecraft so please add wombat’s I have a wombat plush called Wombo and please add great horned owls I like owls please make them tameable and they deliver letters please please and the wombat digs burrow and fact wombats poo cubes and eat carrots and grass and wombats have pouches on there tummy and it faces backwards please one Australian animal