" Trained hawks have a peculiar ability to conjure history because they are in a sense immortal. While individual hawks of different species die, the species themselves remain unchanged. There are no breed or varieties, because hawks were never domesticated. The birds we fly today are identical to those of five thousand years ago. Civilisations rise and fall, but hawks stay the same. This gives falconry birds the ability to feel like relics from the distant past. You take a hawk onto your fist. You imagine the falconer of the past doing the same. It is hard not to feel it is the same hawk. "

― Helen Macdonald , H is for Hawk