We found 2 dictionaries that define the word marsh wrens:

General (2 matching dictionaries)

1. marsh wrens: Merriam-Webster
2. marsh wrens: Vocabulary.com

(Note: See marsh_wren as well.)

Definitions from Wiktionary (marsh wren) ▸ noun:  A North American wren, Cistothorus palustris. ▸ Also see marsh_wren ▸ Words similar to marsh wrens ▸ Usage examples for marsh wrens ▸ Idioms related to marsh wrens ▸ Wikipedia articles (New!) ▸ Words that often appear near marsh wrens ▸ Rhymes of marsh wrens ▸ Invented words related to marsh wrens