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List Of Birds Of Costa Rica
Although Costa Rica is a small country, it is in the bird-rich neotropical region and has a huge number of species for its area. The official bird list published by the Costa Rican Rare Birds and Records Committee of the Asociación Ornitológica de Costa Rica (AOCR) contained 948 species as of July 2023. Of those species, seven are endemic (three of which are found only on Cocos Island), 90 are rare or accidental, and four have been introduced by humans. Another 73 are near-endemic with ranges that include only Costa Rica and Panama. Twenty-seven species, including five of the seven endemics, are globally vulnerable or endangered. Over an area of 51,100 km2, an area smaller than West Virginia, this is the greatest density of bird species of any continental American country. About 600 species are resident, with most of the other regular visitors being winter migrants from North America. Costa Rica's geological formation played a large role in the diversification of avian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay Colored Thrush
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4). Clays develop plasticity (physics), plasticity when wet, due to a molecular film of water surrounding the clay particles, but become hard, brittle and non–plastic upon drying or Pottery#Firing, firing. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clay is the oldest known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery. Some of the earliest pottery shards have been radiocarbon dating, dated to around 14,000 BC, and clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filter (chemistry), filterin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomic Sequence
Taxonomic sequence (also known as systematic, phyletic or taxonomic order) is a sequence followed in listing of taxa which aids ease of use and roughly reflects the evolutionary relationships among the taxa. Taxonomic sequences can exist for taxa within any rank, that is, a list of families, genera, species can each have a sequence. Early biologists used the concept of "age" or "primitiveness" of the groups in question to derive an order of arrangement, with "older" or more "primitive" groups being listed first and more recent or "advanced" ones last. A modern understanding of evolutionary biology has brought about a more robust framework for the taxonomic ordering of lists. A list may be seen as a rough one-dimensional representation of a phylogenetic tree. Taxonomic sequences are essentially heuristic devices that help in arrangements of linear systems such as books and information retrieval systems. Since phylogenetic relationships are complex and non-linear, there is no unique ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thicket Tinamou
The thicket tinamou or rufescent tinamou (''Crypturellus cinnamomeus'') is a type of tinamou commonly found in moist forests in subtropical and tropical central Mexico.Clements, J (2007) Taxonomy All tinamou are from the family Tinamidae, and in the larger scheme are also ratites. Unlike other ratites, tinamous can fly, although in general, they are not strong fliers. All ratites evolved from prehistoric flying birds, and tinamous are the closest living relative of these birds.Davies, S. J. J. F. (2003) René-Primevère Lesson identified the thicket tinamou from a specimen from La Unión, El Salvador., in 1842. Subspecies The thicket tinamou has many subspecies as follows: * ''C. c. cinnamomeus'' (Nominate race) occurs in coastal southeastern Mexico (Chiapas) State, El Salvador, Guatemala, and Honduras. * ''C. c. occidentalis'' occurs on the coastal western Mexico; Sinaloa, Nayarit, Jalisco, Colima, Michoacán, and Guerrero States. * ''C. c. mexicanus'' occurs in coastal north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Tinamou
The little tinamou (''Crypturellus soui'') is a species of tinamou. It is found in Central America, Central and South America, as well as on the Caribbean island of Trinidad. Etymology ''Crypturellus'' is formed from three Latin or Greek language, Greek words. ''kruptos'' meaning covered or hidden, ''oura'' meaning tail, and ''ellus'' meaning diminutive. Therefore, ''Crypturellus'' means small hidden tail. Taxonomy The little tinamou is one of 21 species in the genus ''Crypturellus'', the most species-rich genus of tinamous. All tinamous are in the family Tinamidae, and in the larger scheme are also palaeognaths, a group that includes the more widely known flightless ratites such as ostriches and emus. Unlike the ratites, though, tinamous can fly, although in general they are not strong fliers. All palaeognaths evolved from flying ancestors.Davies, S. J. J. F. (2003) Subspecies * ''C. s. meserythrus'' occurs in southern Mexico, Belize, Honduras, Guatemala, El Salvador, and n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Tinamou
The great tinamou (''Tinamus major'') is a species of tinamou ground bird native to Central and South America. There are several subspecies, mostly differentiated by their coloration. Taxonomy The great tinamou was described and illustrated in 1648 by the German naturalist Georg Marcgrave in his '' Historia Naturalis Brasiliae''. Marcgrave used the name ''Macucagua''. The French polymath Georges-Louis Leclerc, Comte de Buffon described and illustrated the great tinamou in 1778 in his ''Histoire Naturelle des Oiseaux'' from specimens collected in Cayenne, French Guiana. He simplified Marcgrave's name to ''Magoua''. When in 1788 the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's ''Systema Naturae'', he included the great tinamou and placed it with all the grouse like birds in the genus ''Tetrao''. He coined the binomial name ''Tetrao major'' and cited the earlier authors. The great tinamou is now placed with four other species in the genus ''Tinamus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highland Tinamou
The highland tinamou or Bonaparte's tinamou (''Nothocercus bonapartei'') is a type of ground bird found in montane moist forest typically over altitude. Taxonomy All tinamou are from the family Tinamidae, and in the larger scheme are also ratites. Unlike other ratites, tinamous can fly, although in general, they are not strong fliers. All ratites evolved from prehistoric flying birds, and tinamous are the closest living relative of these birds.Davies, S. J. J. F. (2003) It has five subspecies: * ''N. b. frantzii'' occurs in the highlands of Costa Rica and western Panama.Clements, J (2007) * ''N. b. bonapartei'' occurs in northwestern Venezuela and northern Colombia. * ''N. b. discrepans'' occurs in central Colombia ( Tolima and Meta provinces). * ''N. b. intercedens'' occurs in the western Andes of Colombia. * ''N. b. plumbeiceps'' occurs in the Andes of eastern Ecuador and far northern Peru. George Robert Gray identified the highland tinamou from a specimen from Aragua, Vene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiwi (bird)
Kiwi ( ) are flightless birds endemic to New Zealand of the order Apterygiformes. The five extant species fall into the family Apterygidae () and genus ''Apteryx'' (). Approximately the size of a domestic chicken, kiwi are by far the smallest living ratites (which also include ostriches, emus, rheas and cassowaries). However, the ratite group is polyphyletic, and cladistically also includes tinamous, which can also be of moderate size. Members of this expanded group are known as paleognaths. DNA sequence comparisons have yielded the conclusion that kiwi are much more closely related to the extinct Malagasy elephant birds than to the moa with which they shared New Zealand. There are five recognised species, four of which are currently listed as vulnerable, and one of which is near-threatened. All species have been negatively affected by historic deforestation, but their remaining habitat is well-protected in large forest reserves and national parks. At present, the greates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhea (bird)
The rheas ( ), also known as ñandus ( ) or South American ostriches, are large ratites (flightless birds without a keel on their sternum bone) in the order Rheiformes, native to South America, distantly related to the ostrich and emu. Most taxonomic authorities recognize two extant species: the greater or American rhea (''Rhea americana''), and the lesser or Darwin's rhea (''Rhea pennata''). The International Union for Conservation of Nature (IUCN) classifies the puna rhea as another species instead of a subspecies of the lesser rhea. The IUCN currently rates the greater and puna rheas as near-threatened in their native ranges, while Darwin's rhea is of least concern. In addition, a feral population of the greater rhea in Germany appears to be growing, though control efforts are underway, and seem to be succeeding in controlling the birds' population growth. Etymology The name "rhea" was used in 1752 by Paul Möhring and adopted as the English common name. Möhring named the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Struthioniformes
Struthioniformes is an order of birds with only a single extant family, Struthionidae, containing the ostriches. Several other extinct families are known, spanning across the Northern Hemisphere, from the Early Eocene to the early Pliocene, including a variety of flightless forms like the Paleotididae, Geranoididae, Eogruidae and Ergilornithidae, the latter two thought to be closely related to Struthionidae. Evolutionary history According to Mayr and Zelenkov (2021), all Struthioniformes are united by the following characters: "a very long and narrow tarsometatarsus with short trochleae for the second and fourth toes, a tubercle next to the pons supratendineus on the distal end of the tibiotarsus, as well as a shortening of all non-ungual phalanges of the fourth toe except for the proximal one" All known members of the group are thought to have been flightless. Struthioniformes were widely distributed in the Northern Hemisphere during the Eocene, including Paleotididae from Eur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ratites
A ratite () is any of a diverse group of flightless, large, long-necked, and long-legged birds of the infraclass Palaeognathae. Kiwi, the exception, are much smaller and shorter-legged and are the only nocturnal extant ratites. The systematics of and relationships within the paleognath clade have been in flux. Previously, all the flightless members had been assigned to the order Struthioniformes, which is more recently regarded as containing only the ostrich. The modern bird superorder Palaeognathae consists of ratites and the flighted Neotropic tinamous (compare to Neognathae). Unlike other flightless birds, the ratites have no keel on their sternum — hence the name, from the Latin ''ratis'' (raft, a vessel which has no keel - in contradistinction to extant flighted birds with a keel). Without this to anchor their wing muscles, they could not have flown even if they developed suitable wings. Ratites are a paraphyletic group; tinamous fall within them, and are the sister group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
