El canto del ave Huactli: el patrono secundario de la trecena Ce Ollin (1 Temblor) del calendario ritual del centro de México llamado Tonalpohualli

The purpose of this paper is to present a detailed analysis of huactli, the bird which played, almost exclusively, the role of the secondar y patron of the thirteenth trecena or thirteen-day period ce olin (1 Earthquake) of tonalpohualli, the ritual calendar of Central Mexico. As the second patron of this trecena, the huactli bird represented Tezcatlipoca, “the Smoking Mirror”, a well-known Mesoamerican trickster. In the study, as far as possible, all information concerning the bird will be collected, beginning with his graphic representations in the calendarical codices, which later will be confronted with the mentions of huactli in alphabetical sources. Given that the bird ́s laughing and the mocking function of Tezcatlipoca seem to have strong links in the Nahua culture, an attempt will be made to approach the tricksterian role of this deity during toxcatl festival, in the banquets in honor of Omacatl and, finally, in the my ths from Tula.