gyrfalcon

noun

1. (obsolete)Any large falcon, especially as used to fly at herons.

   “For I obſerve, that all vvomen of your condition are like the vvomen of the Play-houſe, ſtill Piquing at each other, vvho ſhall go the beſt Dreſt, and in the Richeſt Habits: till you vvork up one another by your high flying, as the Heron and Jerfalcon do.”

2. Falco rusticolus, a large bird of prey that breeds on Arctic coasts and islands of North America, Europe and Asia.

   “[T]he usurper Buljan ordered that his sukkah be erected on the donjon's roof, with its […] relative nearness to the stars, among which his sky-worshiping and uncircumcised ancestors still hunted with infallible gyrfalcons for celestial game.”