Pachycephalidae
| Pachycephalidae | |
|---|---|
 |
|
| Rufous whistler | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Suborder: | Passeri |
| Family: |
Pachycephalidae Swainson, 1831 |
| Subfamilies | |
The Pachycephalidae are a family of bird species that includes the whistlers, shrikethrushes, and three of the pitohuis, and is part of the ancient Australo-Papuan radiation of songbirds. Its members range from small to medium in size, and occupy most of Australasia. Australia and New Guinea are the centre of their diversity and, in the case of the whistlers, the South Pacific islands as far as Tonga and Samoa and parts of Asia as far as India. The exact delimitation of boundaries of the family are uncertain, and one species, the golden whistler, has been the subject of intense taxonomic scrutiny in recent years, with multiple subspecies and species-level revisions.
The genera Pachycare, Hylocitrea and the crested bellbird were previously included in the family Pachycephalidae until moved to the families Acanthizidae, Hylocitreidae and Oreoicidae respectively. Some authorities have also placed the genus Mohoua, classified in the monotypic family Mohouidae, within the family Pachycephalidae.
The whistler family has six extant genera as follows:
FAMILY PACHYCEPHALIDAE
The whistlers are stout birds with strong bills, and the group was once known as the thickheads due to the large rounded heads of many species. Their plumage is rufous, brown, or grey in the majority of species. Nevertheless, a few species, particularly the golden whistler and its close relatives, have bright plumage. One of the more unusual traits of this family is found in the feathers of some of the pitohuis, which have toxins. These toxins are probably a deterrent to parasites and may also serve to dissuade predators from taking the birds.
Several species belonging to this family are outstanding songsters: the whistlers produce an astonishing volume for their size, and the lyrebirds aside, the grey shrikethrush is often regarded as the finest, most inventive songbird of them all.
...
Wikipedia