What is a pellet?

BNOWs ‘cast’ or regurgitate undigested parts of their food as a mass or pellet. A pellet is mostly comprised of fur and bones, and previously cast pellets can often be seen on the floor of the cavity as small, dark lumps.  You can also find owl pellets under the trees that they roost in.  Analyzing pellets can also tell you what they’ve been eating because you can identify prey species by skulls, bones and/or fur.