The Buff-bellied Hummingbird evidently regularly disperses to the northeast from its breeding areas in south Texas. This northerly movement is unique among North American hummingbirds.
The Buff-bellied Hummingbird breeds near the coast of the Gulf of Mexico, from south Texas to Mexico. It is probably the least-studied hummingbird that regularly occurs in the United States.Bibliographic Citation
: "Buff-bellied Hummingbird (Amazilia yucatanensis)." The Cornell Lab of Ornithology All About Birds. Citation Link
Accessed 24 jan 2014.