Difference between revisions of "Grebe"

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'''Grebes''' are waterbirds found throughout the world, with 20 [[species]] on six continents. All grebes breed near fresh water, but many of the species spend the winter on the sea.
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{{Taxonomy
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|name=Grebe
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|image=Blackneck grebe.jpg
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|caption=Black-necked grebe<br/>''Podiceps nigricollis''
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|domain=Eukaryota
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|kingdom=Animalia
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|subkingdom=Bilateria
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|branch=Deuterostomia
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|superphylum=
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|phylum=Chordata
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|subphylum=Vertebrata
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|infraphylum=Gnathostomata
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|microphylum=
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|superdivision=
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|division=
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|subdivision=
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|superclass=Tetrapoda
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|class=Aves
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|subclass=Neornithes
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|infraclass=Neognathae
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|superorder=Neoaves
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|order=Podicipediformes
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|suborder=
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|infraorder=
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|superfamily=
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|families=
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|family=Podicipedidae
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|subfamily= 
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|supertribe=
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|tribe=
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|subtribe=
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|genera=Aechmophorus<br/>Podiceps<br/>Podilymbus<br/>Poliocephalus<br/>Rollandia<br/>Tachybaptus
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|genus=
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|subgenus=
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|species=
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|binomialname=
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|syn=
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|sub=
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|alt=
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|regionimg=
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|pop=
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|conservation=
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}}
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'''Grebes''' are waterbirds of the family Podicipedidae, found throughout the world, with 20 [[species]] on six continents. All grebes breed near fresh water, but many of the species spend the winter on the sea.
  
 
==Description==
 
==Description==
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Evolutionists consider grebes among the most primitive of birds, closely related to [[loon]]s and [[petrel]]s.
 
Evolutionists consider grebes among the most primitive of birds, closely related to [[loon]]s and [[petrel]]s.
  
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==North American Grebes==
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==Species==
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* [[Horned Grebe]] - Breeds mainly in [[Canada]] and winters in the south-eastern [[United States]] and [[California]]
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*Genus ''Aechmophorus''
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* [[Eared Grebe]] - Breeds west of the [[Rocky mountains]], but not as far as the pacific coast; winters in [[Mexico]] and the four states bordering.
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::[[Clark's grebe]], ''Aechmophorus clarkii''
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* [[Pied-billed Grebe]] - Breeds in the mainland United States and Mexico.
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::[[Western grebe]], ''Aechmophorus occidentalis''
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* [[Least Grebe]] - the smallest of the family, its range stretches north to southern [[Texas]].
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*Genus ''Podiceps''
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* [[Red-necked Grebe]] - Breeds in [[canada]] and winters on the  coast as far south as california and [[Virginia]].
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::[[Black-necked grebe]], ''Podiceps nigricollis''
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* [[Clark's Grebe]] - Breeds west of the Rocky mountains, wintering in California, Mexico, [[New Mexico]] and Texas.
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::[[Colombian grebe]], ''Podiceps andinus'' (extinct 1977)
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* [[Western Grebe]] - Breeds west of the [[Mississippi river]], and winters on the Pacific coast.
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::[[Great grested grebe]], ''Podiceps cristatus''
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::[[Great grebe]], ''Podiceps major''
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::[[Hooded grebe]], ''Podiceps gallardoi''
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::[[Horned grebe]], ''Podiceps auritus''
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::[[Junin grebe]], ''Podiceps taczanowskii''
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::[[Red-necked grebe]], ''Podiceps grisegena''
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::[[Silvery grebe]], ''Podiceps occipitalis''
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*Genus ''Poliocephalus''
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::[[Hoary-headed grebe]], ''Poliocephalus poliocephalus''
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::[[New Zealand grebe]], ''Poliocephalus rufopectus''
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*Genus ''Podilymbus''
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::[[Atitlán grebe]], ''Podilymbus gigas'' (extinct 1989)
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::[[Pied-billed grebe]], ''Podilymbus podiceps''
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*Genus ''Rollandia''
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::[[Titicaca grebe]], ''Rollandia microptera''
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::[[White-tufted grebe]], ''Rollandia rolland''
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*Genus ''Tachybaptus''
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::[[Alaotra grebe]], ''Tachybaptus rufolavatus'' (extinct 2010)
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::[[Australasian grebe]], ''Tachybaptus novaehollandiae''
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::[[Least grebe]], ''Tachybaptus dominicus''
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::[[Little grebe]], ''Tachybaptus ruficollis''
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::[[Madagascar grebe]], ''Tachybaptus pelzelnii''
  
 
==Source==
 
==Source==
 
''The National Geographic Field Guide to the Birds of North America'' (Natioinal Geographic Society 2002)
 
''The National Geographic Field Guide to the Birds of North America'' (Natioinal Geographic Society 2002)
  
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[[category:birds]]
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[[Category:Birds]][[Category:Grebes]]

Revision as of 04:20, May 16, 2014

Grebe
Blackneck grebe.jpg
Black-necked grebe
Podiceps nigricollis
Scientific classification
Kingdom Information
Domain Eukaryota
Kingdom Animalia
Subkingdom Bilateria
Branch Deuterostomia
Phylum Information
Phylum Chordata
Sub-phylum Vertebrata
Infraphylum Gnathostomata
Class Information
Superclass Tetrapoda
Class Aves
Sub-class Neornithes
Infra-class Neognathae
Order Information
Superorder Neoaves
Order Podicipediformes
Family Information
Family Podicipedidae
Genus Information
Genera Aechmophorus
Podiceps
Podilymbus
Poliocephalus
Rollandia
Tachybaptus
Population statistics

Grebes are waterbirds of the family Podicipedidae, found throughout the world, with 20 species on six continents. All grebes breed near fresh water, but many of the species spend the winter on the sea.

Description

Grebes range in length from 11 to 32 inches. They are designed for swimming rather than walking or flying: their feet are set so far back on their bodies that they find walking difficult, and usually prefer to swim - for which the feet provide excellent propulsion. They are often seen swimming with their necks held erect. Their feet are curious for having wide lobes, which help in paddling, rather than webs like those of a duck. Grebes have a layer of soft, downy feathers under their outer feathers. They swallow these feathers when preening, and feed them to their young. It is not known why they do this.

Grebes are poor fliers and will usually dive to safety instead of taking off.

Evolutionists consider grebes among the most primitive of birds, closely related to loons and petrels.

Species

  • Genus Aechmophorus
Clark's grebe, Aechmophorus clarkii
Western grebe, Aechmophorus occidentalis
  • Genus Podiceps
Black-necked grebe, Podiceps nigricollis
Colombian grebe, Podiceps andinus (extinct 1977)
Great grested grebe, Podiceps cristatus
Great grebe, Podiceps major
Hooded grebe, Podiceps gallardoi
Horned grebe, Podiceps auritus
Junin grebe, Podiceps taczanowskii
Red-necked grebe, Podiceps grisegena
Silvery grebe, Podiceps occipitalis
  • Genus Poliocephalus
Hoary-headed grebe, Poliocephalus poliocephalus
New Zealand grebe, Poliocephalus rufopectus
  • Genus Podilymbus
Atitlán grebe, Podilymbus gigas (extinct 1989)
Pied-billed grebe, Podilymbus podiceps
  • Genus Rollandia
Titicaca grebe, Rollandia microptera
White-tufted grebe, Rollandia rolland
  • Genus Tachybaptus
Alaotra grebe, Tachybaptus rufolavatus (extinct 2010)
Australasian grebe, Tachybaptus novaehollandiae
Least grebe, Tachybaptus dominicus
Little grebe, Tachybaptus ruficollis
Madagascar grebe, Tachybaptus pelzelnii

Source

The National Geographic Field Guide to the Birds of North America (Natioinal Geographic Society 2002)

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