This spectacular species is endemic to the Amazon and Orinoco River basins in northern South America. Their scientific name is a misnomer as this species does not occur in Mexico. The neck feathers are raised, the bill pointed up and the tail fanned in display as this adult male sings. Sexes are alike but juveniles have a black cap. The black markings around the eyes and bill are bare skin, not feathers. Canon PowerShot SX60 HS.
References:
Oriole Blackbird (Gymnomystax mexicanus), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/oribla1
Fraga, R. (2019). Oriole Blackbird (Gymnomystax mexicanus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/62305 on 1 August 2019).
Jaramillo, A. and Burke, P. (1999). New World Blackbirds: The Icterids. Princeton, N.J: Princeton University Press.