So I got a hen the other day from a friend of a friend and was told she would be a New Jersey giant pullet. I got her with a couple other hens "barred rock" but she was kept in a coop on the other side of the property with some other jersey giant hens and a rooster I was told she was a purebred New Jersey Giant who was just under a year and that every once in awhile he's seen solid blacks. I was just getting her as a pet to live in a small flock I keep of some assorted egg laying hens I figured she would lay a couple eggs and I Rlly like these chickens I've seen them online in the past and kinda wanted one. but when seeing her in person she seemed a little older than I expected. is their anyway to tell my hens age?? She is small for a New Jersey giant and she is solid black even her face and comb are solid I have a feeling she might not be pure New Jersey giant as I was told, and that she might also be a little older then under a year, Is it possible she could be an older hen who they thought was younger than she is because of her size and as far as the skin coloration could she be mixed with some other breed like a silky that would explain that situation wouldn't it or could she just be a young hen with some sort of gene mutation??