I had a memory this morning.
My daughter took me to a wild bird rescue when we first got here. There was a wild Egret facing a closed door. He stood there not moving for a good while. When the door opened a woman with a wheelbarrow full of fish came out. She gave him a little fish. He followed that wheelbarrow all through the rescue waiting for any fish to fall out.
There was an enclosure with Sand Hill Cranes. Wild cranes nested on the top of the enclosure.