I went up to the lake the other day and just after I got out of the car, I walked under a tree and a bird moved loudly in the tree above me. It was no small bird. It took me a moment to find it but I did. I was surprised it was a Black Crowned Heron.
It was well hidden among the branches but I did manage to find a clearing through the branches to get a shot. I know they fly but I didn't know they did the tree thing.