Carolina wren | Smithsonian’s National Zoo and Conservation Biology Institute https://nationalzoo.si.edu/animals/carolina-wren
If you are in the eastern United States and encounter a bird that looks like a little brown check-mark with a loud voice, it’s probably a Carolina wren. These charismatic little birds are frequent visitors to backyards and bird feeders.
They have bright creamy eye bands and white steaks on their wings.