Might be a daft question for some of you lads but I've just started keeping chickens had them now around two months, when I got them I was told they were 28 weeks old and at point of lay I've got a blue bell, a black rock and two warrens is they a way of telling there age by looks or have I just got to take the blokes word for it? I've kept birds in past but birds I kept was rung as young so I knew by looking at ring how old they where.. Thank Rich