A mate and I are off to try our hands at decoying crows tomorrow, as we've got permission to shoot them until the middle of this month (they're out of season here). Looking around the net, they seem to cost about £5 each, which can end up costing quite a lot if you want a good few decoys out.
Doing a bit of Googling I found that some people have had success with home made silhouette decoys, so I decided to try and make a few myself. I based them on the same idea as shown in this article from 1936.
I'm looking forward to see if they fool the crows tomorrow!