no
Don't worry, the food is digestible.
Digestible has four syllables. Di-gest-i-ble.
yes
No it is not
yes.
butter
Sugars and starches.
no
Amino acids
try them
The owl eats his food whole (mice and such animals). The bits of the animal that are not digestible (hair, bones, etc.) are regurgitated (thrown up). What is thrown up is what we refer to as the "pellet".