apparently a motmot, perhaps the blue-crowned Mexican motmot
See an image of the blue-crowned motmot with its long turquoise blue tail in a photo by Oliver Komar on the site eBird. https://ebird.org/species/tubmot1. Green, orange, and black feathers also make up the colorful combination that characterizes this bird. Another site gives the Mayan name for the Mexican mot-mot (sometimes hyphenated in this way) to be toh: https://tierrasmayas.com/la-leyenda-maya-del-pajaro-toh-el-pajaro-reloj/.(SW)
Given that xihuitl can mean herbs, and the start of this bird's name is xiuh-, seems to emphasize that the feathers are predominantly green. But xiuh- can also refer to turquoise blue. See our entry for xihuitl, below. (SW)