What flopshot said. Fresh chips, esp. fresh non-coniferous-tree chips, will mold. Sometimes somethin' fierce. I'd spread it (at least some of it) very thinly outdoors to dry, and then use quite carefully and sparingly in the coop... or just use it as mulch or soil amendment for the garden, frankly, which would be a lot easier and safer.
Outdoors in the run is not quite as risky as using it as coop bedding but I still would not put down a super thick layer of totally fresh chippings. Also for many people (totally depends on climate and drainage) they will start to rot down and get wet/smelly/fly-ey at some point and may need to be removed from the run later on, although at that point they will be excellent soil amendment.
Good luck,
Pat