This was my first time drawing an avian with 4 wings so it was a real challenge for me, I think I did decent at least :/
Spoiler
These birds live in small flocks and stay hidden from the rest of the world for reasons long lost to time. They mate for life and females only lay a single egg each year, making them a rare species. Should one be spotted by a Magi they will quickly cloak themselves in fog, making them almost invisible if one isn't looking carefully. These birds are also very passive, trying to avoid fights and refusing to eat any kind of meat. They are known as the Wind Spirits in ancient tomes due to their mastery of the wind itself.
Other version with 1 set of wings: