Note 380 — Chapter XXIX · TRAINING THE T̤ARLĀN OR PASSAGE GOSHAWK
D. C. (Douglas Craven) Phillott translation
“To bind,” is to seize and hold on to the quarry, especially in the air, while “to ruff” is to stoop at and hit the quarry, making the feathers fly: vide Bibliotheca Accipitraria, by Harting.