While checking my bird feeder videos the other day I noticed a couple crows acting suspiciously. After zooming in, I watched one of them carefully select a flattened glass marble from my bee bath. The crow then flew over to a nearby bird bath and dropped it in the water.

I can’t imagine why the crow would do this, other than just goofing around. I thought I had noticed fewer glass marbles and now I’ve identified the culprit. I wonder if my neighbors have been finding random glass marbles in their yards?