We are having problems with a blackbird (female) who is insisting on ruining our back garden. She is picking up beakfulls of mud from any damp place in the garden we have. She has dessimated the pots on the patio where I had some bedding plants hardening off. She has ruined the soil at the side of the waterfall and there are loads of other places we keep finding her digging. She is not going very far but she must come 100 times a day. I have had to barracade the waterfall with stones and she still manages to get underneath. Has anyone else had this problem. We've not before.