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Pinyon Jay
The pinyon jay (''Gymnorhinus cyanocephalus'') is a species of jay, and is the only member of the genus ''Gymnorhinus''. Native to Western North America, the species ranges from central Oregon to northern Baja California, and eastward as far as western Oklahoma, though wanderers are often sighted beyond this range. It is typically found within foothills, especially where pinyon pines ('' Pinus edulis'' and '' Pinus monophylla'') occur. Description The pinyon jay is a bluish-grey coloured bird with deeper head colouring and whitish throat with black bill, legs and feet. Roughly intermediate between the blue jay and the Eurasian jay in size, its overall proportions are similar to Clark's nutcracker (''Nucifraga columbiana'') and this can be seen as convergent evolution, as both birds fill similar ecological niches. They were once known as "blue crows". Taxonomy The pinyon jay was first collected, recorded, and first described as a species from a specimen shot along the Maria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Magpie
The Australian magpie (''Gymnorhina tibicen'') is a black and white passerine bird native to Australia and southern New Guinea, and introduced to New Zealand, and the Fijian island of Taveuni. Although once considered to be three separate species, it is now considered to be one, with nine recognised subspecies. A member of the Artamidae, the Australian magpie is placed in its own genus ''Gymnorhina'' and is most closely related to the black butcherbird (''Melloria quoyi''). It is not closely related to the Eurasian magpie, which is a corvid. The adult Australian magpie is a fairly robust bird ranging from in length, with black and white plumage, gold brown eyes and a solid wedge-shaped bluish-white and black bill. The male and female are similar in appearance, but can be distinguished by differences in back markings. The male has pure white feathers on the back of the head where the female has white blending to grey feathers. With its long legs, the Australian magpie wal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differs from species that have been previously described or related species. For a species to be considered valid, a species description must follow established guidelines and naming conventions dictated by relevant nomenclature codes. These include the International Code of Zoological Nomenclature (ICZN) for animals, the International Code of Nomenclature for algae, fungi, and plants (ICN) for plants, and the International Committee on Taxonomy of Viruses (ICTV) for viruses. A species description often includes photographs or other illustrations of type material and information regarding where this material is deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Colony
A bird colony is a large congregation of individuals of one or more species of bird that nest or roost in proximity at a particular location. Many kinds of birds are known to congregate in groups of varying size; a congregation of nesting birds is called a breeding colony. Colonial nesting birds include seabirds such as auks and albatrosses; wetland species such as herons; and a few passerines such as weaverbirds, certain blackbirds, and some swallows. A group of birds congregating for rest is called a communal roost. Evidence of colonial nesting has been found in non- neornithine birds (Enantiornithes), in sediments from the Late Cretaceous (Maastrichtian) of Romania. Variations on colonial nesting in birds Approximately 13% of all bird species nest colonially. Nesting colonies are very common among seabirds on cliffs and islands. Nearly 95% of seabirds are colonial, leading to the usage, seabird colony, sometimes called a rookery. Many species of terns nest in colonies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Nest
A bird nest is the spot in which a bird lays and Avian incubation, incubates its Bird egg, eggs and raises its young. Although the term popularly refers to a specific structures built by animals, structure made by the bird itself—such as the grassy cup nest of the American robin or Eurasian blackbird, or the elaborately woven hanging nest of the Montezuma oropendola or the village weaver—that is too restrictive a definition. For some species, a nest is simply a shallow depression made in sand; for others, it is the knot-hole left by a broken branch, a burrow dug into the ground, a chamber drilled into a tree, an enormous rotting pile of vegetation and earth, a shelf made of dried saliva or a mud dome with an entrance tunnel. The smallest bird nests are those of some hummingbirds, tiny cups which can be a mere across and high. At the other extreme, some nest mounds built by the dusky scrubfowl measure more than in diameter and stand nearly tall. The study of birds' nests ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentry
Sentry or The Sentry may refer to: Marvel Comics *Sentry (Kree) *Sentry (Curtis Elkins) *Sentry (Robert Reynolds) *Senator Ward (comics) or Sentry Vehicles *Sentry (AUV), an autonomous underwater vehicle used to measure deep-ocean data *E-3 Sentry AWACS, airborne early warning aircraft *Lancair Sentry, American kit aircraft Other uses *Tournament of Champions (golf), The Sentry, a PGA Tour golf tournament. *Picket (military) or sentry, one or more soldiers stationed on guard duty *The Sentinel (video game), ''The Sentinel'' (video game), also known as ''The Sentry'' *The Sentry (organization), merger of Not on Our Watch (organization), Not on Our Watch *The Sentry (Fabritius), ''The Sentry'' (Fabritius), a 1654 painting by Carel Fabritius *Sentry (short story), "Sentry" (short story), a 1954 short story by Fredric Brown *Sentry (monitoring system), an automatic near-Earth asteroid collision monitoring system *Sentry Foods, a chain of grocery stores in Wisconsin, United States *Sen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flock (birds)
A flock is a gathering of individual birds to forage or travel collectively. Avian flocks are typically associated with migration. Flocking also offers foraging benefits and protection from predators, although flocking can have costs for individual members. Flocks are often defined as groups consisting of individuals from the same species. However, mixed flocks consisting of two or more species are also common. Avian species that tend to flock together are typically similar in taxonomy and share morphological characteristics such as size and shape. Mixed flocks offer increased protection against predators, which is particularly important in closed habitats such as forests where early warning calls play a vital importance in the early recognition of danger. The result is the formation of many mixed-species feeding flocks. Mixed flocks While mixed flocks are typically thought to comprise two different species, it is specifically the two different behaviours of the species that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Ponderosa
''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine, is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.Safford, H.D. 2013. Natural Range of Variation (NRV) for yellow pine and mixed conifer forests in the bioregional assessment area, including the Sierra Nevada, southern Cascades, and Modoc and Inyo National Forests. Unpublished report. USDA Forest Service, Pacific Southwest Region, Vallejo, CA/ref> ''Pinus ponderosa'' grows in various erect forms from British Columbia southward and eastward through 16 western U.S. states and has been introduced in temperate regions of Europe and in New Zealand. It was first documented in modern science in 1826 in eastern Washington near present-day Spokane (of which it is the official city tree). On that occasion, David Douglas misidentified it as ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinyon–juniper Woodland
Pinyon–juniper woodland, also spelled piñon–juniper woodland, is a biome found mid-elevations in arid regions of the Western United States, characterized by being an open forest dominated by low, bushy, evergreen Juniperus, junipers, pinyon pines, and their associates. At lower elevations, junipers often predominate and trees are spaced widely, bordering on and mingling with grassland or shrubland, but as elevation increases, pinyon pines become common and trees grow closer, forming denser canopies. Historically, pinyon-juniper woodland provided a vital source of fuel and food (particularly Pine nut, piñon nuts) for indigenous peoples of the American Southwest. The nuts continue to be a traditional indigenous food, and because nut-collecting was also adopted by the Spanish in the 1500s, the nuts are also traditionally harvested by some Hispanic communities. pinyon-juniper ecosystems have been under pressure from heavy natural gas extraction in southern Colorado and New Mex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponderosa Forest
Ponderosa may refer to: Places * Ponderosa, California, a census-designated place in Tulare County, California, United States * Ponderosa, New Mexico, a census-designated place in Sandoval County, New Mexico, United States * Village of Ponderosa, a New Urbanism-inspired community in West Des Moines, Iowa, United States Entertainment * Fictional family of drug aficionados, punks, and cats, on the show ''It's Always Sunny In Philadelphia'' * ''Ponderosa'' (TV series), a 2001–2002 television series that was the prequel to ''Bonanza'' * Ponderosa, fictional ranch bordering the northeast side of Lake Tahoe in the American television series ''Bonanza'' * ''Ponderosa'', a title used for reruns of the American television series ''Bonanza'' during the summer of 1972 * Ponderosa, an American Southern rock band * Ponderosa, a track on the album Maxinquaye by Tricky * 'The Ponderosa', the home of Bryn Cartwright in the 1997 British dark comedy crime film Twin Town Schools * Ponderosa E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Ornithologists' Union
The International Ornithologists' Union (IOU) is an international organization for the promotion of ornithology Ornithology, from Ancient Greek ὄρνις (''órnis''), meaning "bird", and -logy from λόγος (''lógos''), meaning "study", is a branch of zoology dedicated to the study of birds. Several aspects of ornithology differ from related discip .... It links basic and applied research and nurtures education and outreach activities. Specifically, the IOU organizes and funds global congresses on ornithology at regular intervals, sets up and supports commissions and committees on various aspects of avian biology and conservation, and initiates and backs other international ornithological activities with specific aims consistent with its own mission and goal. It discloses the names and professional affiliations of its members on its website to encourage international collaboration and networking. The IOU acts as the Ornithology Section of the International Union of Biologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanocitta
''Cyanocitta'' is a genus of birds in the family Corvidae, a family which contains the crows, jays and magpies. The genus includes two crested jays with blue plumage and a distinctive feather crest. Found only in temperate North America, the Rocky Mountains divide the two species. These jays inhabit deciduous, mixed, and coniferous forests, feeding mainly on seeds, invertebrates, and small vertebrates, with occasional human food. As omnivores, they breed from spring to early summer, nesting in treetops or bushes with clutches of three to six eggs. They are the only American corvids that use mud in nest-building. Despite their similarities, the two species differ in migratory behavior, socialization, and mating habits. Description Crested jays are relatively slender corvids with similar body shapes but differ in size. Steller’s jay is larger than the blue jay. Their strong black beaks have a small hooked tip and minimal bristles. They have slightly rounded, medium-to-long tails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma
The passerine birds of the genus ''Aphelocoma'' include the scrub jays and their relatives. They are New World jays found in Mexico, western Central America and the western United States, with an outlying population in Florida. This genus belongs to the group of New World (or "blue") jays—possibly a distinct subfamily–which is not closely related to other jays, magpies or treepies. Within this group, according to a 2023 molecular analysis, ''Aphelocoma'' is the sister group to a clade consisting of ''Cyanocitta'' and ''Pinyon jay, Gymnorhinus''. They live in open pine-oak forests, chaparral, and California mixed evergreen forest, mixed evergreen forests. Systematics Seven species of ''Aphelocoma'' are generally recognized at the present time. They are believed to have evolved in the Pleistocene, and the Florida scrub jay is known to have been recognizably distinct and present in its current range for at least two million years. The inland, coastal, and Santa Cruz island pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
