Sad but true: I have a lot of ants in my yard. I needed them gone. I didn't have any ant killer yard spray but I did have the little plastic disks for when they escape into the house. I put a couple in the yard. I also have a big ass crow that hangs out in my yard. I felt really bad the other morning when he was pecking at the disk. I tried to scare him off, it worked, but he took the disk with him. I have not seen him dead in my yard, but I am watching. I do feel pretty bad about the whole thing..