New Britain boobook New Britain boobook The New Britain boobook ("Ninox odiosa"), also known as the spangled boobook, New Britain hawk-owl or Russet hawk-owl, is a small owl that is endemic to New Britain, the largest island in the Bismarck Archipelago in Papua New Guinea. The New Britain boobook is a small owl that grows to a length of about . It has finely spotted chocolate-brown plumage, golden eyes and white eyebrows. Its facial disk is brown while the upper breast is marked with a wide brown band with buff or white barrings. The underparts are densely spotted brown. Its call is a
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