Hello, We have a 1-acre mostly wooded lot in town (bordered on one side by a small creek). We will getting 4 or 5 adult laying hens for the summer (to be butchered in the fall). My plan is to build a small coop/roosting place to lock them in at night. I would like to however, let them run free during the day. Any thoughts on how far they might wander? Any daytime predators to be concerned about? Any other unforseen problems with this?