I have to say though Simon that I thought the practice of hanging birds was supposed to be a deterrent to other birds.
My Grandfather had a farm and his main produce was eggs and fruit.
He had around 500 chickens and raspberry, blackcurrant, loganberries and gooseberry bushes. (including an apple orchard)
He used to place upturned jam jars on canes with red paint inside on the premise that birds would think it was blood and whatever the truth of it, it did seem to work.
He also used to place small lengths of cut hosepipe between the bushes and it would stop cats digging around the lettice that were planted there as they would think they were snakes. It would also collect earwigs during the night which could then be disposed of during the day!
Edited: 25/01/2009 at 22:39