a common house finch (see Molina); or, a sparrow (see attestation in Spanish); or, a white-winged tanager (Florentine Codex); also, a person's name (attested as male)
See an image that represents molotl in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
MOLO-TL, House Finch (Haemorhous mexicanus) [FC: 48 Molotl]: “It is chalky, ashen, dark ashen; short-billed; medium sized, small; agile, a hopper; a singer. It is a warbler, a talker. It is capable of domestication; it is teachable; it can be bred.… The completely ashen one is the hen, and the chili-red-headed one is the cock…. It sings constantly. It hops about, it hops almost constantly. It is agile; it moves with agility.” Certainly, the House Finch. The male may be distinguished as CUACHICHIL/NŌCH-TŌTŌ-TL.
The Florentine Codex has a painting of this bird. The keywording team of the DFC calls it a white-winged tanager, but the translation by Anderson and Dibble calls it a common house finch.
yn iyoquich ytoca mollotl = Her husband is named Molotl. (Cuernavaca region, ca. 1540s)
Molotl is also attested in the Codex Mendoza as the central feature of a simplex hieroglyph of a place name.
nicteanilitoh molotl yc moxtlauaz = por un gorrión que le tomé, para que se pague (Tulancingo, México, 1577)