Thryothorus modestus (Plain Wren)
- Recordings of this bird's song.
- http://animaldiversity.ummz.umich.edu/site/accounts/sounds/Thryothorus_modestus.html

Thryothorus atrogularis (Black-Throated Wren)
- Sound recordings and scientific classification of this bird.
- http://animaldiversity.ummz.umich.edu/site/accounts/sounds/Thryothorus_atrogularis.html

Carolina Wren (Thryothorus ludovicianus)
- Migration status, breeding, diet, and physical traits. Includes range maps and sound recordings.
- http://www.mbr-pwrc.usgs.gov/id/framlst/i7180id.html

Carolina Wren (Thryothorus ludoviciantus)
- Fact sheet includes a photo, range map, sound recording, and physical description.
- http://birds.cornell.edu/BOW/CAWR/