six James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 214.
a barn owl (see Molina); the term mimics the bird's call (see Hunn, attestations); Anderson and Dibble say that the chicuatli is a smaller owl that screeches (see Florentine Codex, Book V)