I was just outside changing water and filling feed and I noticed that there was a swarm of red ants underneath my chickens' feeder. I hosed them off and cleaned the feeder and water container. Normally I set the feeder and waterer on a wooden board because it helps keep the pine shavings out of the food/water by raising it up a bit. I lifted up the piece of wood and there were swarms and swarms of ants. They weren't there this morning! I tried to scoop them out and wash out the wood underneath. Is this dangerous for my chickens? How do I get rid of them? I have a small coop and run with two chickens.