We do not have coyotes or bears here.

My coop is within my yard that has 6' fencing. We do have raccoons and red fox here. So far no one has gotten through the 1/4" hardware cloth on my windows. I do know that raccoons have been near, on and exploring the coop exterior over the years. If they tried they left no damage.
Fox....I have had ONE run breach by a red fox. All birds were in the coop so it did no damage. I had pulled the anti-dig apron just the day before so I could check for it rusting out. It had.....but I had not made it to the store so that section was unprotected.