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Corvidae
Corvidae is a Cosmopolitan distribution, cosmopolitan Family (biology), family of Songbird, oscine passerine birds that contains the crows, ravens, Rook (bird), rooks, magpies, jackdaws, jays, treepies, choughs, and Nutcracker (bird), nutcrackers. In Colloquialism, colloquial English, they are known as the crow family or corvids. Currently, 139 species are included in this family. The genus ''Corvus'' containing 50 species makes up over a third of the entire family. Corvids (ravens) are the largest passerines. Corvids display remarkable Animal cognition, intelligence for animals of their size, and are among the most Bird intelligence, intelligent birds thus far studied. Specifically, members of the family have demonstrated self-awareness in mirror tests (Eurasian magpies) and Tool use by animals, tool-making ability (e.g. crows and rooks), skills which until recently were thought to be possessed only by humans and a few other mammals. Their total Brain–body mass ratio, brain-to- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magpie
Magpies are birds of various species of the family Corvidae. Like other members of their family, they are widely considered to be intelligent creatures. The Eurasian magpie, for instance, is thought to rank among the world's most intelligent creatures, and is one of the few nonmammalian species able to recognize itself in a mirror test. Magpies have shown the ability to make and use tools, imitate human speech, grieve, play games, and work in teams. They are particularly well known for their songs and were once popular as cagebirds. In addition to other members of the genus '' Pica'', corvids considered magpies are in the genera '' Cissa'', '' Urocissa'', and '' Cyanopica''. Magpies of the genus ''Pica'' are generally found in temperate regions of Europe, Asia, and western North America, with populations also present in Tibet and high-elevation areas of Kashmir. Magpies of the genus ''Cyanopica'' are found in East Asia and the Iberian Peninsula. The birds called magpies in Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chough
A chough ( ) is any of two species of passerine birds that constitute the genus ''Pyrrhocorax'' of the Corvidae (crow) family. These are the red-billed chough (''Pyrrhocorax pyrrhocorax'') and the Alpine chough (or yellow-billed chough) (''Pyrrhocorax graculus''). The white-winged chough of Australia, despite its name, is a member of the family Corcoracidae and only distantly related. The choughs have black plumage and brightly coloured legs, feet and bills and are resident in the mountains and rocky sea-cliffs of southern Eurasia and North Africa. They have long broad wings and perform spectacular aerobatics. Both species pair bond, pair for life and display philopatry, fidelity to their breeding sites, which are usually caves or crevices in a cliff face. They build a lined stick nest and lay three to five eggs. They feed, usually in flocks, on short grazed grassland, taking mainly invertebrate prey, supplemented by vegetable material or food from human habitation, especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvinae
Corvinae is one of six subfamilies in the crow family (Corvidae). It comprises 64 species, which are spread over seven genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s .... References Corvidae Bird subfamilies {{Corvidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvus
''Corvus'' is a widely distributed genus of passerine birds ranging from medium-sized to large-sized in the family Corvidae. It includes species commonly known as crows, ravens, and rooks. The species commonly encountered in Europe are the carrion crow, hooded crow, common raven, and rook; those discovered later were named "crow" or "raven" chiefly on the basis of their size, crows generally being smaller. The genus name is Latin for "raven". The 46 or so members of this genus occur on all temperate continents except South America, and several islands. The ''Corvus'' genus makes up a third of the species in the family Corvidae. The members appear to have evolved in Asia from the corvid stock, which had evolved in Australia. The collective name for a group of crows is a "flock" or a "murder". Recent research has found some crow species capable of not only tool use, but also tool construction. Crows are now considered to be among the world's most intelligent animals with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crypsirininae
The treepies (known also as crypsirinines from the subfamily's name, Crypsirininae) comprise four closely related genera (''Dendrocitta'', '' Crypsirina'', '' Temnurus'' and '' Platysmurus'') of long-tailed passerine birds in the family Corvidae. There are 12 species of treepie. Some treepies are similar to magpies. Most treepies are black, white, gray or brown. They are found in Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au .... They live in tropical forests. They are highly arboreal and rarely come to the ground to feed. Species Following Ericson ''et al.'' (2005), the black magpies are placed with the treepies: References * Ericson, Per G. P.; Jansén, Anna-Lee; Johansson, Ulf S. & Ekman, Jan (2005): Inter-generic relationships of the crows, jays, magpies and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treepie
The treepies (known also as crypsirinines from the subfamily's name, Crypsirininae) comprise four closely related genera (''Dendrocitta'', ''Crypsirina'', ''Temnurus'' and ''Platysmurus'') of long-tailed passerine birds in the family Corvidae. There are 12 species of treepie. Some treepies are similar to magpies. Most treepies are black, white, gray or brown. They are found in Southeast Asia. They live in tropical forests. They are highly arboreal and rarely come to the ground to feed. Species Following Ericson ''et al.'' (2005), the black magpies are placed with the treepies: References * Ericson, Per G. P.; Jansén, Anna-Lee; Johansson, Ulf S. & Ekman, Jan (2005): Inter-generic relationships of the crows, jays, magpies and allied groups (Aves: Corvidae) based on nucleotide sequence data. ''Journal of Avian Biology'' 36: 222–234PDF fulltext External linksTreepie videos on the Internet Bird Collection {{Corvidae, 1 Corvidae Bird common names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Magpie
The Eurasian magpie or common magpie (''Pica pica'') is a resident breeding bird throughout the northern part of the Eurasian continent. It is one of several birds in the crow family (corvids) designated magpies, and belongs to the Holarctic radiation of "monochrome" magpies. In Europe, "magpie" is used by English speakers as a synonym for the Eurasian magpie: the only other magpie in Europe is the Iberian magpie (''Cyanopica cooki''), which is limited to the Iberian Peninsula. Despite having a shared name and similar colouration, it is not closely related to the Australian magpie. The Eurasian magpie is one of the most intelligent birds. The expansion of its nidopallium is approximately the same in its relative size as the brain of chimpanzees, gorillas, orangutans and humans. It is the only non-mammalian species known to pass the mirror test. Taxonomy and systematics The magpie was described and illustrated by Swiss naturalist Conrad Gessner in his '' Historiae animali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rook (bird)
The rook (''Corvus frugilegus'') is a member of the family Corvidae in the passerine order of birds. It is found in the Palearctic, its range extending from Scandinavia and western Europe to eastern Siberia. It is a large, gregarious, black-feathered bird, distinguished from similar species by the whitish featherless area on the face. Rooks nest collectively in the tops of tall trees, often close to farms or villages; the groups of nests are known as rookeries. Rooks are mainly resident birds, but the northernmost populations may migrate southwards to avoid the harshest winter conditions. The birds form flocks in winter, often in the company of other '' Corvus'' species or jackdaws. They return to their rookeries, and breeding takes place in spring. They forage on arable land and pasture, probing the ground with their strong bills and feeding largely on grubs and soil-based invertebrates, but they also consume cereals and other plant material. Historically, farmers have accuse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Jay
The blue jay (''Cyanocitta cristata'') is a passerine bird in the family Corvidae, native to eastern North America. It lives in most of the eastern and central United States; some eastern populations may be migratory. Resident populations are also in Newfoundland, Canada; breeding populations are found across southern Canada. It breeds in both deciduous and coniferous forests, and is common in residential areas. Its coloration is predominantly blue, with a white chest and underparts, and a blue crest; it has a black, U-shaped collar around its neck and a black border behind the crest. Males and females are similar in size and plumage, which does not vary throughout the year. Four subspecies have been recognized. The blue jay feeds mainly on seeds and nuts, such as acorns, which it may hide to eat later; soft fruits; arthropods; and occasionally small vertebrates. It typically gleans food from trees, shrubs, and the ground, and sometimes hawks insects from the air. Blue jays ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Cognition
Animal cognition encompasses the mental capacities of non-human animals, including insect cognition. The study of animal conditioning and learning used in this field was developed from comparative psychology. It has also been strongly influenced by research in ethology, behavioral ecology, and evolutionary psychology; the alternative name cognitive ethology is sometimes used. Many behaviors associated with the term ''animal intelligence'' are also subsumed within animal cognition. Researchers have examined animal cognition in mammals (especially primates, cetaceans, elephants, bears, dogs, cats, pigs, horses, cattle, raccoons and rodents), birds (including parrots, fowl, corvids and pigeons), reptiles ( lizards, snakes, and turtles), fish and invertebrates (including cephalopods, spiders and insects). Historical background Earliest inferences The mind and behavior of non-human animals has captivated the human imagination for centuries. Many writers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
