any American wren of the genus Campylorhynchus, of arid regions, especially C. brunneicapillus, of the southwestern U.S. and Mexico.
What Are Some Irregular Plural Nouns?Irregular plural nouns are nouns that become plural in a way other than adding -s or -es to the end. It can be tough to remember which nouns are irregular, but here are a few guidelines for how to handle the ones that are. Regular Nouns First off, a noun is a person, place, or thing. Nouns are singular when they represent one item and …
Origin of cactus wren
An Americanism dating back to 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019