Well, the article mentions how the natives utilize celestial events for timing certain things, knowing when cycles are beginning, and so on, but in my opinion this is not astrology. Astrology entails the belief that celestial events, alignments, angles, etc., correlate with earthly affairs in ways that are not obviously causal, e.g., it being dark because the Sun has set. Using the constellations to know when to gather eggs, for instance, is a far cry from a Western astrologer consulting an individual's nativity to see when s/he will get married. It really isn't a tradition of astrology in this sense as it isn't as organized and conceptual, although if the astrological tendencies are there it may be relevant for Category:Astrology, and perhaps even an article rename.