The genus Heteroscenes is possible monotypic taxon with a single species - Pallid cuckoo
The pallid cuckoo (Cacomantis pallidus) is a species of cuckoo in the family Cuculidae. It is found in Australia, with some migration to the islands of Timor and Papua New Guinea. It is between 28 and 33 cm in size, with distinctive markings such as a dark bill, a dark eye with a gold eye-ring and olive grey feet which differentiate it from other cuckoos. The pallid cuckoo is similar in appearance to the oriental cuckoo (Cuculus optatus), with barred immature pallid cuckoos being often mistaken for oriental cuckoos.
The pallid cuckoo is widely distributed throughout mainland Australia and Tasmania. It spends the winter months in central inland Australia and the Northern Territory. The cuckoo then migrates to South East Australia's coastal region and Tasmania, arriving generally around September or October, sometimes earlier. It has also been observed that migration occasionally occurs to the islands of Timor and Papua New Guinea in the winter months. It is a rare vagrant to New Zealand.
The pallid cuckoo has been observed in various different habitats such as in woodland, shrubland, mangrove forest, pastoral country, farmland, golf courses and gardens. However it prefers lightly timbered country with trees and shrubs and a sparse under-story where it can best hunt for prey.