''Cracticus'' is a genus of

butcherbird Butcherbirds are songbirds closely related to the Australian magpie. Most are found in the genus ''Cracticus'', but the black butcherbird is placed in the monotypic genus ''Melloria''. They are native to Australasia. Taxonomy Together with thr ...

s native to

Australasia Australasia is a subregion of Oceania, comprising Australia, New Zealand (overlapping with Polynesia), and sometimes including New Guinea and surrounding islands (overlapping with Melanesia). The term is used in a number of different context ...

. They are large

songbird A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin ''oscen'', "songbird". The Passeriformes contains 5,00 ...

s, being between in length. Their colour ranges from black-and-white to mostly black with added grey plumage, depending on the species. They have a large, straight bill with a distinctive hook at the end which is used to skewer prey. They have high-pitched complex songs, which are used to defend their essentially year-round group territories: unlike birds of extratropical Eurasia and the Americas, both sexes sing prolifically.

Taxonomy

The genus ''Cracticus'' was introduced by the French ornithologist

Louis Pierre Vieillot Louis Pierre Vieillot (10 May 1748, Yvetot – 24 August 1830, Sotteville-lès-Rouen) was a French ornithologist. Vieillot is the author of the first scientific descriptions and Linnaean names of a number of birds, including species he collected ...

in 1816 with the hooded butcherbird (''Cracticus cassicus'') as the

type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...

. The name is from the

Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...

''kraktikos '' meaning "noisy" or "clamorous". Together with three species of currawong (''Strepera'') and two species of '' Peltops'', the black butcherbird (''Melloria quoyi''), and the Australian magpie (''Gymnorhina tibicen''), they form the subfamily Cracticinae within the family

Artamidae Artamidae is a family of passerine birds found in Australia, the Indo-Pacific region, and Southern Asia. It includes 24 extant species in six genera and three subfamilies: Peltopsinae (with one genus, '' Peltops''), Artaminae (with one genus con ...

. The genus contains six species: The black butcherbird, '' Melloria quoyi'', is sometimes called ''Cracticus quoyi''.

Biology

They are insect eaters for the most part, but will also feed on small lizards and other vertebrates. They get their name from their habit of impaling captured prey on a thorn, tree fork, or crevice. This "larder" is used to support the victim while it is being eaten, to store prey for later consumption, or to attract mates. They are the ecological counterparts of the

shrike Shrikes () are passerine birds of the family Laniidae. The family is composed of 34 species in two genera. The family name, and that of the larger genus, '' Lanius'', is derived from the Latin word for "butcher", and some shrikes are also known ...

s, mainly found in Eurasia and Africa, which are only distantly related, but share the "larder" habit; shrikes are also sometimes called "butcherbirds". They live in a variety of habitats from

tropical rainforest Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the Equator. They are a subset of the tropical forest biome that occurs roughly within the 28° latitudes (in the torrid zo ...

to arid shrubland. Like many similar species, they have adapted well to

urbanisation Urbanization (or urbanisation in British English) is the population shift from rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It can also ...

and can be found in leafy suburbs throughout Australia. They are opportunistic, showing little fear and readily taking food offerings to the point of becoming semi-tame. Females lay between two and five eggs in a

clutch A clutch is a mechanical device that allows an output shaft to be disconnected from a rotating input shaft. The clutch's input shaft is typically attached to a motor, while the clutch's output shaft is connected to the mechanism that does th ...

, with the larger clutch sizes in more open-country species. Except in the rainforest-dwelling hooded and black butcherbirds,

cooperative breeding Cooperative breeding is a social system characterized by alloparental care: offspring receive care not only from their parents, but also from additional group members, often called helpers. Cooperative breeding encompasses a wide variety of group s ...

occurs, with many individuals delaying dispersal to rear young.Rowley, Ian (1976); "Co-operative breeding in Australian birds" in ''Proceedings of the 16th International Ornithological Congress''. (ed. Frith HJ, Calaby JH) pp. 657-666. Australian Academy of Science: Canberra. The nest is made from twigs, high up in a fork of a tree. The young will remain with their mother until almost fully grown. They tend to trail behind their mother and "squeak" incessantly while she catches food for them.

References

External links

Butcherbird videos
on the Internet Bird Collection {{Taxonbar, from=Q2718273 Bird genera Taxa named by Louis Pierre Vieillot