We found this large scarab beetle in our back yard near the end of August. The shiny black, 1 inch long beetle was in our dry woodland near the ground.
Also called the "Odor of Leather" beetle for its so called scent that smells like leather. (BugGuide.net)
Rotting logs provide nutrients to the soil as they decompose, keep the soil moist, and prevent erosion on slopes. They also provide very important habitat for many insects, both as a food source and for overwintering. We have planted native woodland shrubs and perennials around the logs and they do grow much faster than the same species that aren't planted near the rotting logs.
If you have a place in your landscape to put one or more logs on the ground, you will be providing valuable habitat to insects and food for birds.