“Huitzilopochtli”. 《Encyclopaedia Britannica》. Encyclopaedia Britannica. 2018년 5월 14일에 확인함.
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"For six months of the year [the huitzitzilin] is dead, and for six it is alive. And, as I have said, when it feels that winter is coming, it goes to a perennial, leafy tree and with its natural instinct seeks out a crack. It stands upon a twig next to that crack, pushes its beak into it as far as possible, and stays there for six months of the year--the entire duration of the winter--nourishing itself with the essence of the tree. It appears to be dead, but at the advent of spring, when the tree acquires new life and gives forth new leaves, the little bird, with the aid of the tree's life, is reborn. It goes from there to breed, and consequently the Indians say that it dies and is reborn."Diego Durán (1971). 《Book of Gods and Rites》. 번역 Fernando Horcasitas and Doris Heyden. University of Oklahoma Press. LCCN73-88147.