Kure Atoll on Instagram: "Male ʻIwa (Great Frigatebird) in full display! ❤️ This bright red balloon is a gular pouch, inflated by male ʻiwa during breeding season to attract a mate. As they call and drum their wings, females circle overhead, choosing the most impressive display. Known in Hawaiian as ʻiwa, meaning “thief,” these seabirds are notorious for harassing other birds mid-air until they drop their catch — a behavior called kleptoparasitism. ʻIwa are also skilled hunters, flying low over