They fly by day, but also sometimes come to light at night.

It was expected to fly by late 2004 or early 2005.

I've never yet seen one of those that could actually fly, by the way.

I was even making plans for flying home by myself.

And while he often flies by himself, he's not really on his own.

When it flew by us, I turned the other way.

He had learned from the head bird to fly by himself.

Suddenly an F-14 flew by not five hundred feet away.

Sometimes I even closed my eyes and flew by feel.

He could fly, apparently by an act of will, up to five hundred miles per hour.