She often photographs the crows and other birds, and she lost her lens cap in a nearby alley a few weeks ago while photographing a bald eagle.
When she returned home, the lens cap was sitting on the edge of the birdbath.
Mann checked video from the surveillance camera she set up to record the birds and spotted a crow bringing the lens cap into the yard, walking it to the birdbath, and then rinsing it off.
“I’m sure that it was intentional,” she said. “They watch us all the time. I’m sure they knew I dropped it. I’m sure they decided they wanted to return it.”