Clayton finally finished memorizing his notes for the day, closed his book, and stretched. He fluttered his wings for a moment, stretched his neck, and seemed to come to a decision.
"I'm tried of being cooped up in here all day," he said. "I'm going to stretch my wings for a bit."
And with that, he put on a warm, flease sweatshirt with strategically placed slits in the back, and walked to the open window. He looked outside. It was a cool night, with a bit of fog. Unusual weather, true, but perfect for a stretch.
After making sure there were no mortals around to see him, he climbed onto the landing, and flew.