Hello Everyone, bellow is a photo of may beloved Rooster Owl. Owl has a Tumor on his preening Gland. Luckily the vet said it isn't spreading but they aren't able to remove it with out causing him massive trama. everyday though they want me to give him a once over to make sure no other tumors appear any where else and to make sure it hasn't grown. The moment his tumor grows or spreads he will be coming inside to live with us which dosen't seem to bother him as he prefers human company over that of other chickens. My Hubby and I have disscused getting a chicken harness for him. However we are unsure how to measure him to make sure we have the right size for him. So if someone could help me out with how to measure him or could tell me what size he needs (preferably in inches) that would be great.