What is the relationship between these two paragraphs?

It’s not easy being a bird, especially when you can’t figure out how to fly. That was Donny’s problem. No matter how hard he tried, he couldn’t lift off the ground. He watched the other birds and tried to imitate what they did, but nothing seemed to help.

Summer was almost over, and the leaves were starting to fall off the trees. It would soon be winter, and everyone would be heading south for the summer. Donny didn’t want to be left behind, and he didn’t want to be a burden. He needed to teach himself to fly once and for all.