telolohuitzilin.

TELOLO-HUĪTZIL-IN, a species of hummingbird (Trochilidae) [FC: 25 Telolovitzili] “It is small and round, small and ashen, small and chalky.” There are numerous possibilities amongst the local hummingbirds. The details are inadequate to support an educated guess.
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 11 – Earthly Things, no. 14, Part XII, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1963); and, with quotation selections, synthesis, and analysis here also appearing in E. S. Hunn, "The Aztec Fascination with Birds: Deciphering Sixteenth-Century Sources," unpublished manuscript, 2022, cited here with permission.