yup- i would suggest decorative windsocks, or those little nylon butterflies that spin around... here's a
pretty option or
this might be a little less...flamboyant. that website also has info on controlling bird damage- but it mostly deals with birds eating your garden veggies...
I love that website...
www.gardeners.com I order from them all the time- they have a lot of creative, organic solutions to a lot of household issues. Like mosquitos breeding in my rain barrels...