Ontogenetic changes in the live weight of Saker falcon (Falco cherrug) chicks during the artificial feeding from hatching to transferring

The dynamics of changes in the live weight of saker falcon (Falco cherrug) chicks in the early postnatal period and the comparison of the growth energy of chicks of different morphometric groups during artificial feeding from hatching to transferring were investigated. The average period of minimum live weight gain in saker falcon chicks was 144–192 hours. The chicks with a smaller initial weight compensated it with higher growth energy on days 6–7 compared to the larger chicks.