A free-range hen that has been roosting in various trees around the yard since last summer has gotten hard to find over the last week or so. Thought she might be moving into heavier bush for some reason. What noticed first is I could not find her on any known roost when using a spot light and she was only evident occasionally when I was around during the middle of the day. I came home to pickup some paperwork around 1000 and heard her explode off from ground like hens do when leaving nest they are incubating. Looking back into direction she came from I could see she has a nest under concrete slab of front porch where it is very difficult to see.