owl pellets, indigested parts of animals eaten by olws, owl spit, vomit or regurgitation, are materials from the bird`s prey.

animal avian barn bird birding birds bone bones close closeup coughing digest endangered fauna feathers food fur grass grey hair indigestible mice mouse nature ornithology outdoors owl owls pellet perched predator prey raptor rare rat regurgitate remains rodent skeleton skull small tyto undigested vomit watching white wild wilderness wildlife