I have 6 roosters, 5 hens and 4 ducks they do make a bit of noise, I also free range and sometimes my chickens and ducks go into the neighbors yard. They have been shooting at them with water and nerf guns both adults and kids. Now every time they come out the roosters will not stop crowing. The kids have been chasing them and I did warn them that the roosters might fight back. I have 1 1/2 acres of land and want them to be free. Is there any way to keep them in my yard other than a fence?