You'll never defeat them with netting. Believe me I tried, but after net, after net, upon net, upon net over a three year period, I gave up and took all the nets down. They always finally figured out a way to defeat whatever I put up. I now trap them and re-locate them 5 miles out of town. Though I have been told that they won't survive when re-located, I don't buy that. Besides, it is sure more humane than shooting them. At least I GIVE THEM A CHANCE.