Flightless Aussies is a term used to refer to the emus, which are large, flightless birds native to Australia. They are the second-largest living bird by height, after the ostrich. Emus have long necks and legs, and can reach up to 1.9 meters in height. They are also known for their fast running speed, which can reach up to 50 km/h. Emus are omnivores, and feed on a variety of plants and insects. They are an iconic species of Australia, and are featured on the Australian coat of arms.