👉 The term "heliornis" is a name for an extinct bird species that lived in Asia during the Miocene period. It was one of the largest birds ever known, with wingspans up to 10 feet long and a body mass of about 40 pounds (18 kg). The species had a distinctive beak-shaped bill and was known to fly at high altitudes for long periods of time. It is believed that the heliornis was a predator and