Just outside the window, my neighbor encountered a hawk which had been there all morning. Here’s the expressive Juv. Cooper’s Hawk. Dec. 30, 2022 that took breaks digesting and feasting on a branch in a tree, on a downed branch, and the ground during a four hour window that was long after its feast began.
Opted for a downed branch, then ground.
Back up to 2nd perch, more digesting. Head turn in response to distant train whistle.
This is all normal digestive process for the bird. It takes hours depending upon the size of the prey (birds, small mammals). Prey is ripped apart and swallowed down the esophagus into an ingenious multi compartment stomach sorter –a hopper (the “crop”), the acid bath proventiculus, and gizzard– then on through intestines till it poops. The pellet is coughed up long after.