I’ve actually seen there’s some type of a sprinkler that’s motion detected. Somebody was having problems with people stealing things out of their truck, so they put a motion detector sprinkler system out. It’s a great way to get rid of pests, of any size. However… The other birds would get wet too so I don’t know how that would work out.

Also some thing else you could do is just get a box or something and put old bread, art stuff that’s cheap in it, and move it away from the area where you want the cute birds to come. If the big bird wants to come first and chow down, he’ll go to that other box 1st. Once you see him out there chowing down, then put out food for the little birds.