Couch's Kingbird (Tyrannus couchii)
- Brief fact sheet on this bird's feeding habits, range, and nesting.
- http://www.npwrc.usgs.gov/resource/birds/forest/species/tyracouc.htm

Tropical Kingbird (Tyrannus melancholicus)
- Sound recording, photos, life history, and identification tips.
- http://www.mbr-pwrc.usgs.gov/id/framlst/i4460id.html

Fork-tailed Flycatcher (Tyrannus savana)
- Images and description of this bird's diet, habitat, and range.
- http://www.arthurgrosset.com/sabirds/fork-tailedflycatcher.html

Western Kingbird (Tyrannus verticalis)
- Image plus facts about this species' nesting, voice, and range.
- http://www.birdsofoklahoma.net/Westernkingbd.htm

Cassin's Kingbird (Tyrannus vociferans)
- Taxonomy, nesting, diet, and physical appearance of this bird. Includes range maps.
- http://www.mbr-pwrc.usgs.gov/id/framlst/i4480id.html

Scissor-tailed Flycatcher (Tyrannus forficatus)
- Photos of this species taken in Texas.
- http://birdphotography.com/species/stfl.html

Eastern Kingbird (Tyrannus tyrannus)
- Identification tips, range maps, and life history of this bird. Includes photos.
- http://www.mbr-pwrc.usgs.gov/id/framlst/i4440id.html