Back to being sensible :-)
we have a larson trap, I believe a decoy magpie will catch another magpie or crow, but a crow wil only catch a crow, or is it the other way round? anyway, I hate it, having to kill the trapped one, having to feed and water the decoy, and they smell, however, a necessary evil, and it's time I was setting it again, I'm sure the geese should be laying now, and the call ducks, only seen 2 call eggs and they were in the polytunnel.
I once read that filling an egg with mustard would deter future pilfering, or plaster of paris. I found a rubber egg down the field only a few days ago, fox or badger?