Get a mojo hawk-it flaps its' wings but don't leave it out there every day....it is rechargeable...there is this crazy owl that hoots you place where ever you need to and it hoots when something gets too close..you can find this on Ebay and online ..do not leave it out every day though. I know someone who stuck this plastic owl on their roof top and sooner or later had pigeons right beside it!
One friend left a plastic owl out on his fence every day and one day there was this big gray squirrel sitting right on top of it!
If you have a Larsen trap it may not be the final answer. Yes, you need to have a call bird, but that in itself will be hard to come by. Once you have a call bird, the trap will not catch every bird.
One option would be for you to hunt the property. Once it is hunted, the birds will be educated and will largely leave you alone for a few weeks. You may want to post you location and maybe a nearby hunter can help.
I hope this helps,
Demi
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