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Tachybaptus
''Tachybaptus'' is a genus of small birds of the grebe family. The genus name means "quick diving": it is from Ancient Greek ''takhys'' "quick" and ''bapto'' "I dip". It has representatives over much of the world, including the tropics. These grebes breed in small colonies in heavily vegetated areas of freshwater lakes. They may move to more open or coastal waters when not breeding, and birds in those areas where the waters freeze may be migratory. Like all grebes, they nest on the water's edge, since the legs are set very far back and they cannot walk well. The striped young are sometimes carried on the adult's back. These small grebes are excellent swimmers and divers, and pursue their fish prey underwater. The sexes are similar: dumpy and short-billed with a “powder puff” rear end. Adults have a distinctive breeding plumage and loud breeding calls. In winter, they are grey and white. The five Old World species are closely related to each and at least three have interbre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tachybaptus Ruficollis
The little grebe (''Tachybaptus ruficollis''), also known as dabchick, is a member of the grebe family of water birds. The genus name is from Ancient Greek ''takhus'' "fast" and ''bapto'' "to sink under". The specific ''ruficollis'' is from Latin ''rufus'' "red" and Neo-Latin, Modern Latin ''-collis'', "-necked", itself derived from Latin ''collum'' "neck". At in length it is the smallest European member of its family. It is commonly found in open bodies of water across most of its range. Taxonomy The little grebe was described by the German naturalist Peter Simon Pallas in 1764 and given the binomial name ''Colymbus ruficollis''. The tricolored grebe was formerly considered conspecific, with some taxonomic authorities still considering it so. Subspecies Seven subspecies are currently accepted, four widespread, and three with restricted ranges; they are separated principally by size, eye colour, which varies from dark to light from west to east, and extent of white on the seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grebe
Grebes () are aquatic diving birds in the order (biology), order Podicipediformes (). Grebes are widely distributed freshwater birds, with some species also found in sea, marine habitats during Bird migration, migration and winter. Most grebes fly, although some flightless species exist, most notably in stable lakes. The order contains a single family (biology), family, the Podicipedidae, which includes 22 species in six extant genus, genera. Although, superficially, they resemble other diving birds such as loons and coots, they are most closely related to flamingos, as supported by morphology (biology), morphological, molecular and paleontology, paleontological data. Many species are monogamy in animals, monogamous and are known for their courtship displays, with the pair performing synchronized dances across the water's surface. The birds build floating vegetative nests where they lay several eggs. About a third of the world's grebes are listed at various levels of conservatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tachybaptus Rufolavatus - Zürich Zoo
''Tachybaptus'' is a genus of small birds of the grebe family. The genus name means "quick diving": it is from Ancient Greek ''takhys'' "quick" and ''bapto'' "I dip". It has representatives over much of the world, including the tropics. These grebes breed in small colonies in heavily vegetated areas of freshwater lakes. They may move to more open or coastal waters when not breeding, and birds in those areas where the waters freeze may be migratory. Like all grebes, they nest on the water's edge, since the legs are set very far back and they cannot walk well. The striped young are sometimes carried on the adult's back. These small grebes are excellent swimmers and divers, and pursue their fish prey underwater. The sexes are similar: dumpy and short-billed with a “powder puff” rear end. Adults have a distinctive breeding plumage and loud breeding calls. In winter, they are grey and white. The five Old World species are closely related to each and at least three have interbre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Grebe
The least grebe (''Tachybaptus dominicus''), an aquatic bird, is the smallest member of the grebe family. It occurs in the New World from the southwestern United States and Mexico to Argentina, and also on Trinidad and Tobago, the Bahamas and the Greater Antilles. Description The least grebe ranges in length from (depending on the subspecies) and in weight from . Weights are variable based on region and subspecies, being smaller in Panama, where males weighed a mean of against the females and larger in the West Indies, where the sexes weigh a mean of and , respectively. In Texas, size is intermediate at and . Even in the largest races, the least grebe is still smaller and lighter than any other grebe species.''CRC Handbook of Avian Body Masses, 2nd Edition'' by John B. Dunning Jr. (Editor). CRC Press (2008), . Like all grebes, its legs are set far back on its body and it cannot walk well, though it is an excellent swimmer and diver. Small and plump, with a fairly short, shar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tricolored Grebe
The tricolored grebe (''Tachybaptus tricolor'') is a bird in the family Podicipedidae sometimes considered conspecific with the little grebe ''Tachybaptus ruficollis''. It is native to maritime Southeast Asia and northern parts of Australasia. The IOC treats it as a distinct species; not all other taxonomic authorities do so, some still consider it conspecific with little grebe. It is in some respects intermediate between little grebe which occurs to its north in Asia, and Australasian grebe ''T. novaehollandiae'' which occurs to its south, but also has some distinct characters of its own, notably the dark blackish-grey underparts plumage (both ''T. ruficollis'' and ''T. novaehollandiae'' have a pale greyish-white belly). Its rufous cheeks and throat are nearly as extensive as in ''T. ruficollis'' (lacking the extensive black throat of ''T. novaehollandiae''), but in bill morphology, it is closer to ''T. novaehollandiae''. Its range overlaps with ''T. novaehollandiae'' in Java ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaotra Grebe
The Alaotra grebe (''Tachybaptus rufolavatus''), also known as Delacour's little grebe or rusty grebe, is a recently extinct grebe that was endemic to Lake Alaotra and its surrounding lakes in Madagascar. Experts say that the grebe became extinct after carnivorous fish were introduced into its native habitat. The last sighting of the Alaotra grebe was in 1983 or 1985 and it was officially declared extinct in 2010. Description The grebe was about long. Its ability to fly long distances was restricted because of its small wings. It exhibited no marked sexual dimorphism, although males were slightly larger than females. Diet The Alaotra grebe fed mostly on fish, although insects were found in the stomachs of a few specimens.Safford 2013, p. 111 Its hefty bill was considered typical of a piscivorous grebe. Breeding The breeding behavior of the Alaotra grebe was largely undocumented. Because little and Alaotra grebes were able to successfully pair off, it is suspected that court ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
