You can make some bird deterrents out of pie pans. My mom used them all the time and I have also. You can see one at this site,
http://www.scarecrow-bird-control.com/visual-bird-deterrents/. There is a link to a youtube video if you click on "Pie Pan Scarecrow". All you have to do is get a aluminum pie pan, make a small hole in it using a nail. Then attach it to a string and attach the string to a stake or tree. The pan rotates in the wind and reflects like all around. If attached to a stake, it will bang against the stake too for added bird scare factor!! >