Avian creature is a term commonly used to refer to birds, but there are many synonyms or alternate phrases that can be used to convey the same meaning. Some synonyms for avian creature include feathered friends, winged beings, flying creatures, and feathered fowl. Other alternatives include bird species, avifauna, ornithological species, aerial fauna, and feathered fauna. The choice of word depends on the specific context and tone of the message being conveyed, but these synonyms can help to add variety and interest to any piece of writing or conversation about birds.