Hello knowledgeable chicken folks! Hoping to get some advice from yall. I have 32 Freedom Ranger chicks that are 12 days old. All are eating, drinking, and flapping about normally. One chick though has me concerned. When he breathes the space between his eye and beak on either side as well as the area below his beak puff out with each breath (his beak itself is closed). He doesn't seem concerned by it and is one of the larger chicks of the group. The are in an 8ft x 9ft shed, pine flakes for bedding, eat Nutrena meatbird crumble and have normal droppings. Has anyone seen this before? I appreciate any advice!