Long story shortened......... This chick was brought in to the vet I work at with a broken wing on 4/30. I would have guessed it's age at less than a week old at the time. We surgically removed the wing not REALLY expecting it to survive the surgery/recovery. Well it's now 3 weeks later and "he" (we think) is thriving. He is MUCH larger/heavier than another chick we have that is about 1-1.5 weeks older. "She" (we think) is a cross of an Araucana and a mystery rooster we had, so we expect her to be smaller. Any thoughts as to what kind of chicken this is? He has yellow legs with a black strip down the front of each one, a single comb, yellow beak with a black stripe over the top and the feathers are coming in black and white like a barred rock. Maybe thats what it is, it's just that he is SO MUCH larger and heavier that the other one or even other chicks we have had in the past at this age. Thanks!!