Atmosphere Birds (Avis atmospherica) are huge birdlike creatures from the planet Earth.
Atmosphere Birds obtain oxygen from the clouds that they fly through. They also feed on numerous species of whale that have been introduced to their planet. The largest creatures that are included in their diet are Megawhales.
- Some adult males are twice the size of Megawhales.
- Atmosphere Birds are only seen on planet Earth every 10 years to lay their eggs. They wait on land for a week for their eggs to hatch, then they fly back into the sky with their youngsters.
- They only live in relatively low areas of Earth's atmosphere.