Stingbats (Navi name: Riti) are foul-tempered aerial predators that have a highly developed visual navigation system. Yet despite this organic "intelligence," their small brain cavity and cerebral cortex inhibits their innate survival mechanisms. Despite a constant slaughter, the creatures continue to fly into the range of automated sentry guns that defend the Hell's Gate compound.
Stingbats are treated almost like pets by some Na'vi despite lethal tail spines. They can be summoned by Na'vi with a clicking sound made between the tounge and teeth, to alight on one's arm or shoulder and eat fruit out of Na'vi hands.