cowbell
A cowbell is a bell worn by freely roaming livestock, making animals easier to locate should they wander off. Although they are typically referred to as "cowbells", due to their extensive use with cattle, the bells are used on a wide variety of animals.
If attached to a collar, also add bell_collar
Further reading:
https://en.wikipedia.org/wiki/Cowbell
See also
The following tags are aliased to this tag: cow_bell (learn more).