I've been thinking people were awfully careless throwing away their trash and leaving such a mess around the cans in the Huntington Beach Central Park.
Then I sat and watched a very large, very confident, very clever black crow systematically going through the trash, pulling out one item at a time. He opened styrofoam containers, shook bags free, and generally investigated everything there was to investigate.
I had to admire him.
I also think lids might be a very good idea.