ATLANTA, GEORGIA - AUGUST 21: A hawk as seen during a practice round prior to the TOUR Championship at East Lake Golf Club on August 21, 2019 in Atlanta, Georgia. (Photo by Sam Greenwood/Getty Images)

A video of a guy holding a hawk was making the rounds last week, and here’s why. The guy is moving the hawk’s body back and forth, and up and down, but the bird’s head doesn’t budge. It stays locked in place and keeps looking forward.
It’s called “head stabilization” and birds need to do it so they can stay focused on prey even when their bodies are moving around.

This Hawk's Head Stabilization Technique Is So Weird That We Can't Look Away - Digg

Apparently, many birds do the same thing, but it's a little more mind-boggling when it comes from a hawk.