soundtea 
"[@Vaidelot":](/images/2481679#comment_9348898
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Clouds can be pretty low, and the atmosphere goes **pretty high**. Even healthy humans require outside assistance when you hit that 20000 feet mark. Doubly so if exerting a lot of physical effort. Even a pegasus wouldlikely have trouble putting in the effort when trying to fly in the bottom layers of the stratosphere.
Even among birds only a scant few types can even get into the lower areas of the Stratosphere. And even then just coasting really.
Ocellus is best buggo
Clouds can be pretty low, and the atmosphere goes **pretty high**. Even healthy humans require outside assistance when you hit that 20000 feet mark. Doubly so if exerting a lot of physical effort. Even a pegasus would
Even among birds only a scant few types can even get into the lower areas of the Stratosphere. And even then just coasting really.