The magpies. The inconsiderate bummers left one on the kitchen floor one day! A couple have been taken from the porch so they may have a nest nearby. Seriously, months ago i kept the door almost closed whenever i wasn't down there and they disappeared. I thought AHA! It worked! Then, lol, started leaving it open again and they were back. Guarantee, they must be the same two. They have good memories.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”