I thought they left a while ago gone till warmer weather returned. I was caught by surprise hiking on a misty wet day by a lake and marshes. I was the only person on the trail at that particular time, so it was quiet.
Then I looked at the middle of the lake drawn by the sound of flapping wings, large wings. At first I thought it was a goose, but there was no loud honking sound that geese make to announce their arrivals and departures.
I looked closer with zoom on my camera at the bird. It blended in with the blue color of the water that it swam on. A blue heron spotted in the autumn. A sweet fall surprise.