So I am newer to chickens. I got my first ones in May. Of the 7 only 1 is laying and started in the last week. She has laid her egg in the boxes every time. Well a few days ago I noticed a bunch of feathers, and straw with poop moved into the box. So I dug that all out and found food pellets in the laying box. At first I thought the hen but now I am leaning towards rodent. What do I do? We fixed some gaps in wire where something small could get in, but there is a chance they are living under the front step.mouse trap? poison?