Just a word of caution... I never used to worry about them either until last summer.
I was trapped in the coop by two black bears who would not leave despite yelling, banging, throwing objects at them and two very upset large dogs loosing their minds. (I had left them in the house) I managed to run to the house when they moved behind the coop and grabbed the 12 gauge. Unfortunately they had already found themselves a chicken breakfast and gone back to the woods.
They spent the entire day (I went to work not thinking they would come back with the dogs now outside going crazy) eating chickens. Unfortunately the dogs cannot get to the chickens as one would probably eat them but it blew my mind that they would come that close to a dog.
One was shot by my husband that evening and the other was shot in a playground nearby. Turns out they had raided two other poultry farms out our way. Being that we raise prey animals and are hunters we spend a great deal of time in the woods and have noticed over the last few years that predators are becoming far bolder.
Lesson learned, gun safe in coop