Buff-bellied Hummingbird (Amazilia yucatanensis) [XC298921]
by Dan Lane from Bluebonnet Swamp, East Baton Rouge Parish, Louisiana, United States (call, song, chase call)
Buff-bellied Hummingbird (Amazilia yucatanensis) [XC221044]
by Manuel Grosselet from Gomez Farias area, Tamaulipas, Mexico (song)
Subspecies
Forms a superspecies with Cinnamon Hummingbird (Amazilia rutila), but not, as sometimes suggested, with Rufous-tailed Hummingbird (Amazilia tzacatl) and Loja Hummingbird (Amazilia alticola). Subspecies cerviniventris formerly treated as a distinct species, including subspecies chalconota.
The following 3 subspecies are recognised:
chalconota Oberholser, 1898 - Extreme southern USA (Texas) to north-eastern Mexico (south to San Luis Potosí).