Crows, Ravens, Jays, Magpies & Butcherbirds

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About Crows, Ravens, Jays, Magpies & Butcherbirds

Objectives of the Group – To present an interesting, varied collection of high quality bird images belonging to the relevant family as described below.

Crows form the genus Corvus in the family Corvidae.
Ranging in size from the relatively small pigeon-size jackdaws (Eurasian and Daurian) to the Common Raven of the Holarctic region and Thick-billed Raven of the highlands of Ethiopia, the 40 or so members of this genus occur on all temperate continents (except South America) and several offshore and oceanic islands (except for a few, which included Hawaii, which had the Hawaiian crow that went extinct in the wild in 2002). In the United States and Canada, the word "crow" is used to refer to the American Crow, Corvus brachyrhynchos.

The crow genus makes up a third of the species in the Corvidae family. Other corvids include rooks and jays. Crows appear to have evolved in Asia from the corvid stock, which had evolved in Australia. A group of crows is called a flock or a murder, because the group will sometimes kill a dying crow.

Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs and nutcrackers. The common English names used are corvids (more technically) or the crow family (more informally), and there are over 120 species. The genus Corvus, including the jackdaws, crows and ravens, makes up over a third of the entire family.

They are considered the most intelligent of the birds, and among the most intelligent of all animals having demonstrated self-awareness in mirror tests (European Magpies) and tool making ability (crows, rooks)—skills until recently regarded as solely the province of humans and a few other higher mammals. Their total brain-to-body mass ratio is equal to that of great apes and cetaceans, and only slightly lower than in humans.

They are medium to large in size, with strong feet and bills, rictal bristles and a single moult each year (most passerines moult twice). Corvids are found worldwide except for the tip of South America and the polar ice caps. The majority of the species are found in tropical South and Central America, southern Asia and Eurasia, with fewer than 10 species each in Africa, Australasia and North America. The genus Corvus has re-entered Australia in relatively recent geological prehistory, with five species and one subspecies there.
en.wikipedia.org/wiki/Corvidae

The family Artamidae gathers together 20 species of mostly crow-like birds native to Australasia and nearby areas.
There are two subfamilies: Artaminae, the woodswallows, are sombre-coloured, soft-plumaged birds that have a brush-tipped tongue but seldom use it for gathering nectar. Instead, they catch insects on the wing. They are agile flyers with large, pointed wings and are among the very few passerine birds that soar. One sedentary species aside, they are nomads, following the best conditions for flying insects, and often roosting in large flocks. The nests of woodswallows are loosely constructed from fine twigs, and both parents help rear the young.

Historically, the cracticines – currawongs, Australian Magpie and butcherbirds – were seen as a separate family Cracticidae. With their 1985 DNA study, Sibley and Ahlquist recognised the close relationship between the woodswallows and the butcherbirds in 1985, and placed them in a Cracticini clade, now the family Artamidae. The two species of peltops were once placed with the monarch flycatchers but are now placed here.

The cracticines have large, straight bills and mostly black, white or grey plumage. All are omnivorous to some degree: the butcherbirds mostly eat meat, Australian Magpies usually forage through short grass looking for worms and other small creatures, currawongs are true omnivores, taking fruit, grain, meat, insects, eggs and nestlings. The female constructs bulky nests from sticks, and both parents help incubate the eggs and raise the young thereafter.

The cracticines, despite their fairly plain, utilitarian appearance, are highly intelligent and have extraordinarily beautiful songs of great subtlety. Particularly noteworthy are the Pied Butcherbird, the Pied Currawong and the Australian Magpie.
en.wikipedia.org/wiki/Artamidae

Pee-Wees aka Magpie Larks (Scientific name: Grallina cyanoleuca)
do not belong here, they are Family Dicruridae.
The Magpie-lark is distinctively marked in black and white. The thin whitish bill and pale iris separate it from other similarly coloured species. The adult male Magpie-lark has a white eyebrow and black face, while the female has an all-white face with no white eyebrow. Young birds have a black forehead, a white eyebrow and a white throat. The Magpie-lark is often referred to as a Peewee or Pee Wee, after the sound of its distinctive calls.

The name Magpie-lark is quite misleading, as the species has no link with either the magpies or the larks. However, the Magpie-lark is sometimes confused with the Australian Magpie, Gymnorhina tibicen. While both species are black and white, the Magpie-lark is noticeably smaller than the Australian Magpie. birdsinbackyards.net/species/Grallina-cyanoleuca
See this group for your Pee-Wees : www.flickr.com/groups/honeyeaters_flycatchers_thrushes/