This year has been really bad in Southern Arizona for biting ants. I have tried so many things, I am hoping someone here can help. The ants are really little with two red segments in the front and a black segment in their rear. There seems to be a network of tunnels around the chicken coop. I have tried a non toxic granular, some gray plastic sticks that you stick into the ground with some sort of gel inside, and Terro, but nothing seems to help. The ants will disappear for a day or two, then when I go to the coup, the girls are sitting on the roost because the floor of the coop is moving with ants. Does anyone have any suggestions to get rid of these little buggers? I would not mind so much, but they BITE! Thanks for your suggestions.