He had taken short flights of a few yards and then had been obliged to rest.

So it occurred to him that this boy was learning to fly--or rather to walk.

He mentioned this to his mate and when he told her that the Eggs would probably conduct themselves in the same way after they were fledged she was quite comforted and even became eagerly interested and derived great pleasure from watching the boy over the edge of her nest--though she always thought that the Eggs would be much cleverer and learn more quickly.

But then she said indulgently that humans were always more clumsy and slow than Eggs and most of them never seemed really to learn to fly at all.

You never met them in the air or on tree-tops.
After a while the boy began to move about as the others did, but all three of the children at times did unusual things.