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Scrub-jay
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. They live in open pine-oak forests, chaparral, and 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 populations of the (former) western scrub-jay are now considered three separate species: Woodhouse's, the California and the island scrub jays. Two different populations of the Mexican jay might similarly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma Ultramarina 5265159
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. They live in open pine-oak forests, chaparral, and 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 populations of the (former) western scrub-jay are now considered three separate species: Woodhouse's, the California and the island scrub jays. Two different populations of the Mexican jay might similarly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Scrub Jay
The California scrub jay (''Aphelocoma californica'') is a species of scrub jay native to western North America. It ranges from southern British Columbia throughout California and western Nevada near Reno to west of the Sierra Nevada. The California scrub jay was once lumped with Woodhouse's scrub jay and collectively called the ''western scrub jay''. The group was also lumped with the island scrub jay and the Florida scrub jay; the taxon was then called simply ''scrub jay''. The California scrub jay is nonmigratory and can be found in urban areas, where it can become tame and will come to bird feeders. While many refer to scrub jays as "blue jays", the blue jay is a different species of bird entirely. Etymology The generic name, ''Aphelocoma'', derives from Latinized Ancient Greek ''apheles-'' (from ἀφελής-) "simple" + Latin ''coma'' (from Greek ''kome'' κόμη) "hair", in reference to the lack of striped or banded feathers in this genus, compared to other jays. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma Californica
The California scrub jay (''Aphelocoma californica'') is a species of scrub jay native to western North America. It ranges from southern British Columbia throughout California and western Nevada near Reno to west of the Sierra Nevada. The California scrub jay was once lumped with Woodhouse's scrub jay and collectively called the ''western scrub jay''. The group was also lumped with the island scrub jay and the Florida scrub jay; the taxon was then called simply ''scrub jay''. The California scrub jay is nonmigratory and can be found in urban areas, where it can become tame and will come to bird feeders. While many refer to scrub jays as "blue jays", the blue jay is a different species of bird entirely. Etymology The generic name, ''Aphelocoma'', derives from Latinized Ancient Greek ''apheles-'' (from ἀφελής-) "simple" + Latin ''coma'' (from Greek ''kome'' κόμη) "hair", in reference to the lack of striped or banded feathers in this genus, compared to other jays. The sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma Woodhouseii
Woodhouse's scrub jay (''Aphelocoma'' ''woodhouseii''), is a species of scrub jay native to western North America, ranging from southeastern Oregon and southern Idaho to central Mexico. Woodhouse's scrub jay was until recently considered the same species as the California scrub jay, and collectively called the western scrub jay. Prior to that both of them were also considered the same species as the island scrub jay and the Florida scrub jay; the taxon was then called simply the scrub jay. Woodhouse's scrub jay is nonmigratory and can be found in urban areas, where it can become tame and will come to bird feeders. While many refer to scrub jays as "blue jays", the blue jay is a different species of bird entirely. Woodhouse's scrub jay is named for the American naturalist and explorer Samuel Washington Woodhouse. Description Woodhouse's scrub jay is a medium-sized bird, approximately in length (including its tail), with a wingspan, and about in weight. The species has a blue he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican Jay
The Mexican jay (''Aphelocoma wollweberi'') Etymology: ''Aphelocoma'', from Latinized Ancient Greek ''apheles-'' (from ἀφελής-) "simple" + Latin ''coma'' (from Greek ''kome'' κόμη) "hair", in reference to the lack of striped or banded feathers in this genus, compared to other jays. ''wollweberi'', Name: "collector Mr. Wollweber". formerly known as the gray-breasted jay, is a New World jay native to the Sierra Madre Oriental, Sierra Madre Occidental, and Central Plateau of Mexico and parts of the southwestern United States. In May 2011, the American Ornithologists' Union voted to split the Mexican jay into two species, one retaining the common name Mexican jay and one called the Transvolcanic jay. The Mexican jay is a medium-sized jay with blue upper parts and pale gray underparts. It resembles the Woodhouse's scrub-jay, but has an unstreaked throat and breast. It feeds largely on acorns and pine nuts, but includes many other plant and animal foods in its diet. It has a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma Wollweberi
The Mexican jay (''Aphelocoma wollweberi'') Etymology: ''Aphelocoma'', from Latinized Ancient Greek ''apheles-'' (from ἀφελής-) "simple" + Latin ''coma'' (from Greek ''kome'' κόμη) "hair", in reference to the lack of striped or banded feathers in this genus, compared to other jays. ''wollweberi'', Name: "collector Mr. Wollweber". formerly known as the gray-breasted jay, is a New World jay native to the Sierra Madre Oriental, Sierra Madre Occidental, and Central Plateau of Mexico and parts of the southwestern United States. In May 2011, the American Ornithologists' Union voted to split the Mexican jay into two species, one retaining the common name Mexican jay and one called the Transvolcanic jay. The Mexican jay is a medium-sized jay with blue upper parts and pale gray underparts. It resembles the Woodhouse's scrub-jay, but has an unstreaked throat and breast. It feeds largely on acorns and pine nuts, but includes many other plant and animal foods in its diet. It has a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma Coerulescens
The Florida scrub jay (''Aphelocoma coerulescens'') is one of the species of scrub jay native to North America. It is the only species of bird endemic to the U.S. state of Florida and one of only 15 species endemic to the continental United States. Because of this, it is keenly sought by birders. It is known to have been present in Florida as a distinct species for at least 2 million years, and is possibly derived from the ancestors of Woodhouse's scrub jay. It measures in length, and weighs from , with an average . The wingspan of the jay is . It has a strong black bill, blue head and nape without a crest, a whitish forehead and supercilium, blue bib, blue wings, grayish underparts, gray back, long blue tail, black legs and feet. Ecology The Florida scrub jay is found only in Florida scrub habitat, an ecosystem that exists only in central Florida and in limited areas along the Atlantic coast, and is characterized by nutrient-poor soil, occasional drought, and frequent wildfires ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphelocoma Insularis
The island scrub jay (''Aphelocoma insularis''), also known as the island jay or Santa Cruz jay, is a bird in the genus, ''Aphelocoma'', which is endemic to Santa Cruz Island off the coast of Southern California. Of the over 500 breeding bird species in the continental U.S. and Canada, it is the only insular endemic landbird species. Description The island scrub jay is closely related to the California scrub jay (the coastal population found on the adjacent mainland), but differs in being larger, more brightly colored, and having a markedly stouter bill. They will bury, or cache, the acorns in the fall and may eat them months later. They also eat insects, spiders, snakes, lizards, mice and other birds' eggs and nestlings. Taxonomy The island scrub jay was first described by American ornithologist Henry Wetherbee Henshaw in 1886 and an archaeological specimen at site SCRI-192 dating from the 1780s-1812 on Santa Cruz Island is the earliest evidence of the bird in the historic peri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Condor (journal)
''Ornithological Applications'', formerly ''The Condor'' and ''The Condor: Ornithological Applications'', is a peer-reviewed quarterly scientific journal covering ornithology. It is an official journal of the American Ornithological Society. History The journal was first published in 1899 as the ''Bulletin of the Cooper Ornithological Club'' by a group of biologists in California. The journal's scope was regional, covering the western United States. In 1900, the name was changed to ''The Condor''. In 1947, the journal's subtitle was shortened to ''The Condor, Journal of the Cooper Ornithological Club''. Editors-in-Chief: 1899-1902: Chester Barlow; 1902-1905: Walter K. Fisher with Joseph Grinnell as Associate Editor; 1906-1939 Joseph Grinnell; 1940-1966: Alden H. Miller Berkeley, CA; 1966-1968: James R. King Washington State; 1969-1973: Ralph J. Raitt New Mexico State University; 1973-1974: Francis S. L. Williamson SI Chesapeake Bay Center for Environmental Studies, Edgewat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Mixed Evergreen Forest
: California mixed evergreen forest is a plant community found in the mountain ranges of California and southwestern Oregon. The Mixed evergreen forest plant community is native to the Northern and Southern California Coast Ranges and Sierra Nevada of central and northern California; the Transverse Ranges and Peninsular Ranges of southern California; and the southwestern Oregon Coast Ranges. California mixed evergreen forests occur in ecoregions of the California Floristic Province, including in areas of the California chaparral and woodlands and its sub-ecoregions, Klamath-Siskiyou Mountains forests, Northern California coastal forests, and Sierra Nevada lower montane forest. The mixed evergreen forests of each ecoregion have slightly different species composition. Klamath-Siskiyou mixed evergreen forest The mixed evergreen forests of the Klamath Mountains-Siskiyou Mountains occur above 300 meters (1000 ft) elevation, and are of four main types. Douglas-fir forests are f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
