Documented every Day! Development of freshly hatched chicks to adult chicken in 2 minutes! The hen is one of a total of 8 chickens hatched on 24.03.2019 after a breeding period of 21 days. I documented the growth of the chick every day for over 2 months, and every week thereafter, recording all stages of development and growth from the chick hatched directly from the egg to the adult laying hen.