The goal would be to have the birds

The goal would be to have the birds consume 1 ml for every hour, for the first 24 hours after placement-in reality this means 24ml. When considering that the average chick weighs 44g, this equates to 50% of its bodyweight. Neither one of the methods will give a really clear picture of how the bird is adapting to its new environment, but all three together provide an accurate account.