Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Suriname, Trinidad and Tobago, Venezuela.
Population
Estimated population is 5,000,000 - 50,000,000 (2010).
Collared Trogon (Trogon collaris) [XC275278]
by Patricio Mena Valenzuela from Esmeraldas: Cooperativa Nueva Aurora, R\u00edo Guadero, Ecuador (song)
Collared Trogon (Trogon collaris) [XC335953]
by Ross Gallardy from Reserva de la Biosfera Selva el Ocote,Chiapas, Mexico (call, song, interaction calls)
Subspecies
Possibly closest to Mountain Trogon (Trogon mexicanus), Elegant Trogon (Trogon elegans), Masked Trogon (Trogon personatus), Black-throated Trogon (Trogon rufus) and Blue-crowned Trogon (Trogon curucui). Orange-bellied birds from Costa Rica and western Panama, described as aurantiiventris, sometimes treated as a separate species, and assortative pairing has been reported; since an identical individual has been taken in southern Mexico (Oaxaca), however, this form is now considered to be no more than a morph of present species. Subspecies puella sometimes regarded as a distinct species. Validity of subspecies extimus questionable.
Proposed subspecies xalapensis (Jalapa) considered indistinguishable from puella; eytoni (Rio de Janeiro) apparently inseparable from castaneus. Considerable uncertainty also attends status of proposed subspecies underwoodi from north-western Costa Rica and flavidior from Panama (Cerro Flores).
The following 11 subspecies are recognised:
puella Gould, 1845 - Eastern Mexico southern along both slopes of Central America to central Panama (Veraguas).
extimus Griscom, 1929 - North-eastern Panama (eastern Darién).
heothinus Wetmore, 1967 - Eastern end of Serranía del Darién.
virginalis Cabanis & Heine, 1863 - Western Colombia and western Ecuador.
subtropicalis Zimmer, JT, 1948 - Subtropical zone of western Colombia in Magdalena and Cauca Valleys.
collaris Vieillot, 1817 - East of Andes (except northern Venezuela) south to northern Bolivia and west-central Brazil; Trinidad and Tobago.
castaneus von Spix, 1824 - Lower Amazon and patchily in eastern Brazil.
underwoodi Bangs, 1908 - North-western Costa Rica. Considered by some authors to be a subspecies of Orange-bellied Trogon (Trogon aurantiiventris).
aurantiiventris Gould, 1856 - Central Costa Rica, western Panama. Considered by some authors to be a distinct species, Orange-bellied Trogon (Trogon aurantiiventris).