I just watched a very strange thing. A fat magpie outside my window managed to find a huge piece of bread on the lawn. Rather than stand there and eat it piece by piece it appeared to try to hide it. It seemed to shove it into the ground and then try and hide it by covering it with bits of loose grass. It even seemed to dig up bits of growing grass to place on top of it.
Do magpies hide food? I confess I don't know but it certainly seems like it.