Featured Stories on BackYard Chickens
If it did not crow yet, then it is likely to be a hen. Hard to tell the age of a chicken unless one inspects it closely. Looking at the feet of young chickens there is a difference, to that of older chickens. Hard to tell if a chicken is 3 or 8 years old.
Here is a pix of one that is currently 10. She looked the same at 2 years of age.
If they get good nutrition they look good into THEIR GOLDEN YEARS.