I had chickens for several years. I had a camera set up on the pen to see what predators were coming around. I apparently dropped a card while changing out the camera, and didn't notice it. I would let the chickens out during the day to free range. A while later I was hosing out the inside of the chicken house, and found a card, label gone. I washed it off, and I'm still using that same card now, years later. I refer to it as "old faithful". It still functions after going through a chicken, so I think yours will be all right.
Predators eventually ate all my chickens, and I gave up on keeping them.