Note 607 — Chapter XXXVII · TRAINING THE PASSAGE SAKER TO COMMON HERON[580]
D. C. (Douglas Craven) Phillott translation
There is no reason why she should be useless. I have had an intermewed saker of twelve or more moults that was still a first-class hubara hawk, and intermewed peregrines of ten moults that seldom failed to kill either heron or hubara.