The birds of this genus are notorious for laying their eggs in other birds’ nests
Cacomantis is a genus of cuckoo most prevalent in the regions of Australia, Fiji, New Caledonia, New Zealand, New Guinea, Vanuatu, and the Solomon Islands.
It is usual to find this species in open woods, woodlands, scrub, spinifex plains, mangroves, and gardens, although you will find the greatest number of individuals in drier regions. The most frequent occurrences of this species are found in the interior portions of Australia.
Insects, particularly grasshoppers, beetles, caterpillars, and other larvae, comprise most of the prey consumed.
Their breeding season varies from place to place, but one thing that is common among them all is that they are “Brood Parasites,” birds that lay their eggs in nests of other bird species and let them take care of the young ones.