Cinnabar boobook long tail and narrow pointed wings. The four known records of the species indicate it is a nocturnal forest dwelling species living at mid-altitudes (). Otherwise very little is known of its habits. Based on morphological similarities with owlet-nightjars, Rasmussen suggests the cinnabar boobook may be an insectivore and prey on invertebrates in flight. Cinnabar boobook The cinnabar boobook ("Ninox ios") also known as the cinnabar hawk owl, is a hawk owl endemic to the island of Sulawesi, Indonesia. It was described as a new species to science by American ornithologist Pamela C. Rasmussen in 1999 based on a single
Southern boobook southern boobook is a mainly nocturnal species, though may be active at dawn and dusk. It is heard much more commonly than seen, being particularly vocal in breeding season. The characteristic two-note "boo-book" call or hoot can be heard up to away, the second note generally lower in pitch than the first. Calling takes place from sunset through till dawn, generally with a peak in the two hours after dusk and just before dawn. It can continue for several hours. The male's hooting is higher pitched and of shorter duration, and is heard much more commonly than that of the