One day I left a plant pot tray out in the rain. A crow came along to drink the rainwater from the tray. I thought that was cool, so I didn’t remove the tray, so he would come back to drink. A few days later I found a pork sparerib bone stripped clean of the sinew left on the bone. I think the crow probably brought the bone to the tray, to soak the sinew in the water so it would be easier to get it off the bone. So clever.