Certainly! Let's break down the term "cygnus atratus" in a way that's easy to understand.
Cygnus atratus is a scientific name that refers to a specific type of swan known as the black swan. This bird is large, has all black feathers (plumage), and a striking red bill (the beak it uses to eat).
So, to summarize, cygnus atratus is a scientific name for the black swan, a large bird with black feathers and a red bill.