When he began sliding in to feet-up landings on the beach, then pacing the length of his slide in the sand, his parents were very much dismayed indeed.
“Why, Jon, why?” his mother asked. “Why is it so hard to be like the rest of the flock, Jon? Why can’t you leave low flying to the pelicans, the albatross!” Why don’t you eat? Son, you’re bone and feathers!”
“I don’t mind being bone and feathers, mom. I just want to know what I can do in air and what I can’t, that’s all. I just want to know.”
“See here, Jonathan,” said his father, not unkindly. “Winter isn’t far away. Boats will be few, and the surface fish will be swimming deep. If you must study, then study food, and how to get it. This flying business is all very well, but you can’t eat a glide, you know. Don’t you forget that the reason you fly is to eat.”
Jonathan nodded obediently. For the next few days he tried to behave like the other gulls; he really tried, screeching and fighting with the flock around the piers and fishing boats, diving on scraps of fish and bread. But he couldn’t make it work.

It’s all so pointless, he thought, deliberately dropping a hard-won anchovy to hungry old gull chasing him. I could be spending all this time learning to fly. There’s so much learn!
It wasn’t long before Jonathan Cull was of by himself again, far out at sea, hungry, happy, learning.
The subject was speed, and in a week’s practice he learned more about speed then the fasterst gull alive.
From a thousand feet, flapping his wings as hard as he could, he pushed over into a blazing steep dive toward the waves, and learned why seagulls don’t make blazing steep power-dives. In just six seconds he was moving seventy miles per hour, the speed at which one’s wing goes unstable on the upstroke.
Time after time in happened. Careful as he was, working at the very peak of his ability, he lost control at high speed.