When the coop is situated within close proximity to your house - the "forest" predators must be extremely determined to come that close, to where humans reside.
Moreover, my dogs can smell them long before they even come to a property lane.
I have seen my dogs charging into the woods, barking many times - mostly at night.
Thus, we didn't lost any of our chickens to this kind of predators.
However, we are losing couple of baby chicks to a "flying predators" - HAWKS!
I guess hawks wouldn't be able to fly up with an adult chicken - too heavy.
And, he knows he cannot just dine at the property, because he will become diner himself....
I observed Hawk in action - he did this with lightening speed - Down and up with chick still crying in his beak!
Before I can even count to 1-2-3!
Dogs just danced into the air helplessly.
Our chickens are free-ranged during a day and such an acreage would be impossible to "top-netted"
In this scenario; Any other predator's attack can be prevented, but I don't see much prevention for hawks.
I made a "scare-crow", a hanging beer cans - as suggested by others and it's just not working!