Means of locating one from the herd

• Moo-ring device?
• It may be heard in a herd
• Brief corporation on railroad, maybe, that’s to go round Jersey?
• Pasture pealer

WordNet Word definitions in WordNet
n. a bell hung around the neck of cow so that the cow can be easily located

Wikipedia Word definitions in Wikipedia
A cow bell or 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 "cow bells", due to their extensive use with cattle , the bells are used on a wide variety ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1650s, American English, from cow (n.1) + bell (n.).

Wiktionary Word definitions in Wiktionary
n. 1 A bell worn by cows; sometimes with an ornate strap. 2 (context musical instruments English) A musical instrument, typically found without a clapper.

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ A cowbell sounded close at hand. ▪ I hear only a distant occasional cowbell and the cheerful nearer transactions of insects. ▪ In the distance we can hear cowbells. ▪ Somewhere, cowbells sounded; the animals had been brought ...