The collared trogon (Trogon collaris) is a near passerine bird in family Trogonidae, the quetzals and trogons. It is found in Mexico, throughout Central America, and in northern South America. Taxonomy and systematics The International Ornithological Committee (IOC) and the Clements taxonomy recognize these 10 subspecies of collared trogon. They treated T. c. aurantiiventris ("orange-bellied trogon") as a separate species until the late 2010s. T. c. puella Gould (1846) T. c. underwoodi Bangs (1908) T. c. aurantiiventris Gould (1846) T. c. extimus Griscom (1929) T. c. heothinus Wetmore (1967) T. c. virginalis Cabanis & Heine (1863) T. c. subtropicalis Zimmer (1948) T. c. exoptatus Cabanis & Heine (1863) T. c. collaris Vieillot (1817) T. c. castaneus Spix (1824) BirdLife International's Handbook of the Birds of the World (HBW) recognizes eight subspecies, excluding T. c. aurantiiventris and T. c. underwoodi. Description Trogons have distinctive male and female plumages, with soft, often colorful, feathers. The collared trogon is about long and weigh abouts . Both sexes have a black face and throat. The male's crown, nape, back, and rump are bright metallic green. The folded wing shows black and white vermiculation. The breast is also metallic green with a white band separating it from the bright red belly and vent. The upperside of the tail is green with a black tip and the underside is barred black and white. The female is olive brown where the male is green, the closed wing is brown with black vermiculation, and the belly is a duller red than the male's. The underside of the tail is gray with a few black bars and white tips. Distribution and habitat The 10 subspecies of collared trogon are found thus: T. c. puella, central Mexico to western Panama T. c. underwoodi, northwestern Costa Rica T. c. aurantiiventris, central Costa Rica to western Panama T. c. extimus, eastern Darién Province in northeastern Panama T. c. heothinus, Panama's Serranía del Darién T. c. virginalis, western Colombia through western Ecuador into northwestern Peru T. c. subtropicalis, central Colombia, especially the Magdalena and Cauca valleys T. c. exoptatus, northern Venezuela (and Trinidad & Tobago?) T. c. collaris, east of the Andes from Colombia south to northern Bolivia and east through the Guianas and much of west central Brazil (and Trinidad & Tobago?) T. c. castaneus, southeastern Colombia south to eastern Peru and northern Bolivia and into northwestern Brazil; also eastern Brazil Clements