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Podicipediformes
Grebes () are aquatic diving birds in the order Podicipediformes (). Grebes are widely distributed freshwater birds, with some species also found in marine habitats during migration and winter. Most grebes fly, although some flightless species exist, most notably in stable lakes. The order contains a single family, the Podicipedidae, which includes 22 species in six extant genera. Although, superficially, they resemble other diving birds such as loons and coots, they are most closely related to flamingos, as supported by morphological, molecular and paleontological data. Many species are 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 conservation concerns—the biggest threats including habitat loss, the introduction of invasive predatory fish and human p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podilymbini
Podilymbini is a potential tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ... of waterbirds belonging to the family Podicipedidae containing the genera '' Podilymbus'' and '' Tachybaptus''. In comparison to Podicipedini, podilymbins are characterized by the lack of nuptial plumes and the chicks have rufous down in one or more patches on the crown. They are able to stand upright and move around land more so. The mating displays among these birds are simpler. There is uncertainty for the tribe, however, due to different morphological studies suggesting different interpretations of the tribe. Bochenski (1994) using comparative osteology studies found Podilymbini to also include the genera '' Poliocephalus'' and '' Rollandia''. In his paper he found ''Podilymbus'' to be basal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miodytes
''Miodytes'' is a fossil genus of grebe known from a nearly complete specimen from Valjevo Basin, western Serbia known from an almost complete right wing skeleton. It contains a single species, ''M. serbicus''. History The specimen was collected from Bela Stena, Suseoke village. The binomial nomenclature for ''Miodytes serbicus'' means "Serbian Miocene diver". Description The holotype specimen of ''Miodytes'' is a slab that contains the right wing skeleton of the bird, nearly completed, consisting of the distal fragment of humerus, ulna, radius, carpometacarpus and parts of the wingtips (RGF 97/3). Due to the nature of the bones in the slab, the authors Dimitreijevich et al. (2002) used the humerus part and the carpometacarpus to provide comparative anatomy and a diagnosis. ''Miodytes'' can be differentiated from other grebes as the genus has a well developed epicondylus ventralis and a very deep and long sulcus musculi brachialis. The processus supracondylaris dorsalis is abs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podicipedini
Podicipedini is a tribe of waterbirds belonging to the family Podicipedidae containing the genera '' Aechmophorus'' and '' Podiceps''. Members of this tribe of grebes are characterized based on the presence of nuptial plumes and downy young with a bare crown patch. They are more specialized for diving though the anatomy that enables them to do so makes them weaker to stand upright. Further they have much complex mating dance rituals. Based on these characteristics, other possible genera in the clade include '' Poliocephalus'' and '' Rollandia''. Indeed a molecular phylogeny by Ogawa et al. (2015) using genetic data from 3 mitochondrial markers found ''Podiceps'' to be paraphyletic in respect to ''Rollandia'', as the latter genus is more closely related to several New World species of the former genus. The inclusion of the Neogene The Neogene ( ,) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiornis
''Thiornis'' is a fossil genus of Middle Miocene grebe known from a nearly complete specimen from Libros, Spain. Originally classified as a type of moorhen, ''Thiornis'' has since been classified as a species of grebe. The overall anatomy of the bird is identical to modern grebes. It contains a single species, ''T. sociata''. History The specimen was described by the Spanish Jesuit priest and entomologist Longinos Navás. Despite being of such distinction, Navás had described several vertebrates from the locality. For a while the whereabouts since its description was unknown, but unbeknownst to the scientific community, the slab was on display in the Paris Museum at least since 1930 where it was finally reexamine for a 1995 redescription by American biologist and ornithologist Storrs L. Olson. Description The holotype of ''Thiornis'' is known from a virtually completed specimen that majority of it consists of postcranial material and even feather impressions (National Museum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podiceps Griseigena 238
''Podiceps'' is a genus of birds in the grebe family. The genus name comes from Latin , "rear-end" and ', "foot", and is a reference to the placement of a grebe's legs towards the rear of its body. It has representatives breeding in all continents except Antarctica. Some species are partially or entirely migratory, moving in winter to the coast or warmer climates. Most species are widespread and overall common, but three South American species each are restricted to a single country; two of them are seriously threatened and a third is already extinct. They breed in vegetated areas of freshwater lakes, nesting on the water's edge, since their legs are set too far back for easy walking. Usually two eggs are laid, and the striped young may be carried on the adult's back. All the genus are excellent swimmers and divers, and pursue their fish prey underwater. Adults have striking breeding plumage, with no difference between the sexes. In winter, the plumage is subdued whites and gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miobaptus
''Miobaptus'' is a fossil genus of grebe that is known from several specimens collected from Czechia and Lake Baikal dating from the Early Miocene to Middle Miocene. Considered to be one of the most primitive genera of grebes, the anatomy of ''Miobaptus'' suggests it was less adapted for the aquatic mode of life than modern grebes, but had better flight maneuverability. History The holotype species ''M. walteri'' was collected from Dolnice and described by Švec (1982). He would later describe more specimens of the species from Bohemia in 1984. A second species ''M. huzhiricus'' was described by Zelenkov (2015) from specimens collected from Olkhon Island. Description The distal part in the humeri of ''Miobaptus'' is different from extant grebes as the surface is flat and overall the wingbones more elongated. In contrast the distal ends in the humeri of extant grebes the surfaces is more concave, and overall they have much shorter wingbones. Classification ''Miobaptus'' is pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliolymbus
''Pliolymbus'' is a fossil genus of grebe known from the Late Pliocene to Early Pleistocene of United States and Mexico. It is known from a single species, ''P. baryosteus''. History The specimens were collected in the summer of 1950 from Kansas, United States by Claude W. Hibbard and the species was named in 1967 by Bertram G. Murray. The binomial nomenclature for the species means “heavy bone Pliocene diver” in reference of the age and skeletal features of the grebe. Howard (1969) published a specimen collected from Lake Chapala from a series of field surveys in the region from 1926, 1958 and 1963. Description A total of six specimens of ''Pliolymbus'' have been recovered. The holotype consists of the anterior portion of the sternum ( UMMP 51839). The additional specimens are a humerus (UMMP 51840), proximal of a coracoid (UMMP 51841), the shaft of a tarsometatarsus (UMMP 51844), and a more incomplete specimen that has more complete remains of coracoids, an ulna and carp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunucornis
''Hunucornis huayanen'' is an extinct grebe species from the Las Flores Formation, a Miocene-aged deposit in central Argentina. It is known from two specimens containing fragmentary pieces of the left forelimb and femur. It is the oldest fossil evidence of grebes in South America. History The holotype INGEO-PV-376 and the referred material INGEO-PV-371 were collected, along with other fossil bird remains, from several field expeditions to Candelaria Creek over ten years, soon later to be described by Federico L. Agnolín, Gerardo Álvarez Herrera, Sebastián Rozadilla, and Victor Contreras in a 2025 article about this late Miocene avian assemblage. The authors named the material ''Hunucornis huayanen,'' which the genus means "Hunuc's bird", which comes from Huarpe cosmogony about the first man who was friend to the animals, and the ephipet species name is Allentiac for "swim". The name refers to the fact ''H. huayanen'' is the oldest fossil evidence of grebes in South America. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podiceps
''Podiceps'' is a genus of birds in the grebe family. The genus name comes from Latin , "rear-end" and ', "foot", and is a reference to the placement of a grebe's legs towards the rear of its body. It has representatives breeding in all continents except Antarctica. Some species are partially or entirely migratory, moving in winter to the coast or warmer climates. Most species are widespread and overall common, but three South American species each are restricted to a single country; two of them are seriously threatened and a third is already extinct. They breed in vegetated areas of freshwater lakes, nesting on the water's edge, since their legs are set too far back for easy walking. Usually two eggs are laid, and the striped young may be carried on the adult's back. All the genus are excellent swimmers and divers, and pursue their fish prey underwater. Adults have striking breeding plumage, with no difference between the sexes. In winter, the plumage is subdued whites and gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flamingo
Flamingos or flamingoes () are a type of wading bird in the family Phoenicopteridae, which is the only extant family in the order Phoenicopteriformes. There are four flamingo species distributed throughout the Americas (including the Caribbean), and two species native to Afro-Eurasia. A group of flamingoes is called a "flamboyance", or a "stand". Etymology The name ''flamingo'' comes from Portuguese or Spanish ; in turn, the word comes from Provençal – a combination of and a Germanic-like suffix ''-ing''. The word may also have been influenced by the Spanish ethnonym or . The name of the genus, ''Phoenicopterus'', is ; other genera names include '' Phoeniconaias,'' which means , and '' Phoenicoparrus,'' which means . Taxonomy and systematics The family Phoenicopteridae was introduced by the French zoologist Charles Lucien Bonaparte in 1831, with '' Phoenicopterus'' as the type genus. Traditionally, the long-legged Ciconiiformes, probably a paraphyletic asse ... [...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] |
Great Grebe
The great grebe (''Podiceps major'') is the largest species of grebe in the world. A disjunct population exists in northwestern Peru, while the main distribution is from extreme southeastern Brazil to Patagonia and central Chile. The population from southern Chile is considered a separate subspecies, ''P. m. navasi''. Taxonomy The great grebe was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1781 in his . The bird was also illustrated in a hand-coloured plate engraved by François-Nicolas Martinet in the ', which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name ''Colymbus major'' in his catalogue of the ''Planches Enluminées''. Buffon mistakenly believed that his specimen had come from Cayenne in French Guiana. The great grebe is now placed in the genus ''Pod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
