Morepork they emulate the bird's distinctive two-pitched call. It has dark brown plumage with prominent pale spots, and golden-yellow eyes. It is generally nocturnal, though is sometimes active at dawn and dusk, retiring to roost in secluded spots in the foliage of trees. The morepork feeds on insects and small vertebrates, hunting by pouncing on them from tree perches. The International Union for Conservation of Nature has assessed the morepork as being of least concern on account of its large range and apparently stable population. English naturalist John Latham wrote of the New Zealand owl in his 1780s work "A General
Failure to refer the actual world, according to Russellian logic, most statements in the poem are false. Failure to refer Failure to refer, also reference failure or failure of reference, is the concept that names can fail to name a real object. According to Bertrand Russell's theory of truth, there is only one actual world, and a statement's truth value depends on whether the statement obtains in the actual world. Continuing the tradition of Gottlob Frege, Bertrand Russell posited that a name picks out, or refers to, a real object in the world (Russell's correspondence theory of truth). The name "Genghis Khan" thus