I found this inside a chicken run inside a 4 foot high picket fence with underground wire around the perimeter and upon the chicken coop that is about 4 ft tall. No sign of digging. iit is about the diameter of an apple. Black and a bit like a dog poop.
Dauphin County Pennsylvania animal excrement identification
Thank you for your question. We would need far more information to ID this. Please contact your county Extension for help. Here is their webpage: https://extension.psu.edu/dauphin-county Good luck!