I also have to say that this species won me over with its method of self-sacrifice to have children.
It would be a compromise for the babies, but for those cute little babies, totally worth it.
Obviously, that problem wouldn’t happen on Earth since our gravity is lower than Atlas, but also our thin atmosphere would likely make flying for this species much more taxing and prevent them from spending most of life in the air.
It takes guts to land on a surface knowing you can’t get back up once down, and it is a bit tragic that some sacrifice has to occur for this majestic species to carry on.