whats the best way to combat pigeons
 

PIGEONS they are driving me MAD eating all my sprouts,cabbages etc.
I love the birds on my allotment but these buggers are eating more veg than i can grow. I have put up a net but these buggers carry baseball bats and eat viagra. everyone on the allotment is having the same problem so would welcome any help !!!!!!!!!! I could try pigeon pie ?