how to tell age of chickens
There really is no good way to accurately determine the age of a chicken. In general, from hatch to feathering takes up to 12 weeks. First eggs are laid at about 5 months. First molt (the lose and change feathers) takes place at about 12 to 14 months old depending on the breed. Egg production stops about three years old and from there the chicken can live up to 10 years old.