Blue-crowned Trogon (Trogon curucui) [XC212445]
by Niels Poul Dreyer from Passo de Camaragibe, Alagoas, Brazil (song)
Blue-crowned Trogon (Trogon curucui) [XC594555]
by Mauricio Cuellar Ramirez (@Birding.travel) from Pava Negra Nature Reserve - Florencia, Caquet\u00e1., Colombia (call)
Subspecies
Possibly closest to Mountain Trogon (Trogon mexicanus), Elegant Trogon (Trogon elegans), Collared Trogon (Trogon collaris), Masked Trogon (Trogon personatus) and Black-throated Trogon (Trogon rufus). DNA studies suggest, however, that nearest relatives may be Violaceous Trogon (Trogon violaceus) and White-tailed Trogon (Trogon viridis). Formerly current name variegatus is a junior synonym of curucui, whereas bolivianus is a synonym of peruvianus.
The following 3 subspecies are recognised:
peruvianus Swainson, 1838 - Foot of eastern Andes from Colombia south to north-western Bolivia (R Beni), and east to north-central Brazil (R Tapajós).
curucui Linnaeus, 1766 - Central and eastern Brazil.