Note 354 — Chapter XXIX · TRAINING THE T̤ARLĀN OR PASSAGE GOSHAWK
D. C. (Douglas Craven) Phillott translation
A hawk in just proper condition, if underfed, will, if the night be very cold, become thin in one night. In the Indian Spring, when the nights are temperate, I have known a saker falcon go up two ounces in weight in one night, from a slight overfeed of hubara flesh.