My new Orpinton Rooster arrived and on the first day was king of the castle. Day two to five has been a different story. He seems to have trouble swallowing and seems to have saliva in his beak which he is unable to stop. He hasn't eaten much only mashed potatoes. He isn't very active and avoids other hens and the sun. Lost all energy and he just walking around slowly. he seems to have something wrong with his neck. Any ideas?