Southern Toad (Bufo terrestris)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bterrest.htm

Oak Toad (Bufo quercicus)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/oaktoad.htm

Western Toad (Bufo boreas)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bboreas.htm

Texas Toad (Bufo speciosus)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bspecios.htm

Fowler's Toad (Bufo fowleri)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bfowl.htm

Gulf Coast Toad (Bufo valliceps)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bvall.htm

Woodhouse's Toad (Bufo woodhousii)
- Photos and details of range, habitat and how to identify species. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bwood.htm

Red-spotted Toad (Bufo punctatus)
- Photos, description and map of distribution. From USGS.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/species/bpunctat.htm

Houston Toad (Bufo houstonensis)
- Details of characteristics, range, food, habitat and reproduction. From Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Bufo_houstonensis.html

Golden Toad (Bufo periglenes)
- Details of characteristics, range, food, habitat and reproduction. From Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Bufo_periglenes.html

American Toad (Bufo americanus)
- Details of characteristics, range, food, habitat and reproduction. From Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Bufo_americanus.html

Great Plains Toad (Bufo cognatus)
- Details of characteristics, range, food, habitat and reproduction. From Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Bufo_cognatus.html

Colorado River or Sonoran Desert Toad (Bufo alvarius)
- Details of characteristics, range, food, habitat and reproduction. From Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Bufo_alvarius.html