I am installing screening around my roofed deck. This is special stuff that's virtually invisible. My deck is well-shaded among dense trees, so that makes it even harder to see the screening. Birds visit my yard all the time, partly because of the foliage, and partly because I have a pond with waterfall that they visit. I am pretty sure I'm going to have birds flying into my screens. I thought I'd stick raptor sillouettes on my screening but apparently that is ineffective. Apparently, most common methods of preventing bird strikes are ineffective. If I read that website correctly, it seems the only effective way of preventing them is to fill the area with obstacles so that the birds simply do not see the area as an opening large enough to fly through. I went to great lengths when building my roofed deck to ensure that my view was undisturbed; I am loathe to fill that all up with obstacles. Advice?