Hair is made up of keratin. Human beings lack the necessary enzymes to digest keratin.
no
Don't worry, the food is digestible.
Digestible has four syllables. Di-gest-i-ble.
yes
yes.
No it is not
no
try them
Sugars and starches.
butter
Amino acids
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".