Collar, N.J. (2001). "Family Trogonidae (Trogons)". In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. Vol. 6 Mousebirds to Hornbills. Barcelona, Spain: Lynx Edicions. pp. 126–127. ISBN84-87334-30-X.
H., Ma. Lourdes Avila; O., V. Hugo Hernandez; Verlarde, Enriqueta (25 May 1996). "The Diet of Resplendent Quetzal (Pharomachrus Moncinno mocinno: Trogonidae) in a Mexican Cloud Forest". Biotropica. 28 (4): 720–727. Bibcode:1996Biotr..28..720H. doi:10.2307/2389058. JSTOR2389058.
"Quetzal". Global Village Museum of Arts and Cultures. Retrieved 4 April 2022.
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H., Ma. Lourdes Avila; O., V. Hugo Hernandez; Verlarde, Enriqueta (25 May 1996). "The Diet of Resplendent Quetzal (Pharomachrus Moncinno mocinno: Trogonidae) in a Mexican Cloud Forest". Biotropica. 28 (4): 720–727. Bibcode:1996Biotr..28..720H. doi:10.2307/2389058. JSTOR2389058.
Orellana, Claudia (2004). "Quetzals Bred in Captivity in Chiapas". Frontiers in Ecology and the Environment. 2 (7). Ecological Society of America: 345. Bibcode:2004FrEE....2..345O. JSTOR3868355.
H., Ma. Lourdes Avila; O., V. Hugo Hernandez; Verlarde, Enriqueta (25 May 1996). "The Diet of Resplendent Quetzal (Pharomachrus Moncinno mocinno: Trogonidae) in a Mexican Cloud Forest". Biotropica. 28 (4): 720–727. Bibcode:1996Biotr..28..720H. doi:10.2307/2389058. JSTOR2389058.
Orellana, Claudia (2004). "Quetzals Bred in Captivity in Chiapas". Frontiers in Ecology and the Environment. 2 (7). Ecological Society of America: 345. Bibcode:2004FrEE....2..345O. JSTOR3868355.