Nivawk

Nivawk was a large, predatory bird Rahi. The only known Nivawk served as a pet and spy for Makuta, and was killed when Makuta absorbed it to increase his own power. It is possible that the name is just the pet's name instead of the species' name. It may have been Dume's pet and spy rather then Makuta's, with Dume using it to watch over the city and Makuta just using it to spy on the Toa Metru. It was able to carry Dume around but it was mostly used for spying.