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Taxonomic




Order
Family
Species
Population
Discontinued Size - year Size Size estimate quality Size references Trend - year Trend Trend quality Trend references 1% threshold 1% yearset Notes
Podicipediformes
Podicipedidae
Tachybaptus novaehollandiae (Australasian Grebe)
timorensis 2006 - 2006 1 - 10,000 Best guess [R668] 0 - 0 Unknown No idea 100 2012
fumosus 2006 - 2006 1 - 10,000 Best guess [R668] 0 - 0 Unknown No idea 100 2012
incola 2006 - 2006 1 - 10,000 Best guess [R668] 0 - 0 Unknown No idea 100 2012
Tachybaptus pelzelnii (Madagascar Grebe)
Madagascar 2005 - 2005 5,000 - 5,000 [R64] 1985 - 1999 DEC [R64] 50 2012
Tachybaptus dominicus (Least Grebe)
dominicus 2006 - 2007 1 - 5,000 [R1021] 2006 - 2007 STA? No idea [R1021] 1 2012 [S7537]
brachypterus 0 - 0 10,000 - 25,000 Best guess [R1114] 0 - 0 Unknown No idea 250 2012 [S7538]
bangsi 0 - 0 1 - 10,000 Best guess [R1120] 1991 - 1996 DEC Good [R1120] 100 2012 [S7539]
speciosus 2005 - 2011 25,000 - 100,000 Best guess [R1092] [R1158] [R1191] 2001 - 2010 STA Reasonable [R119] 1000 2012 [P1409]
(eisenmanni) 2006 - 2006 1 - 10,000 Best guess [R668] 0 - 0 Unknown No idea 100 2012 [P1410]
Podilymbus podiceps (Pied-billed Grebe)
podiceps 0 - 0 100,000 - 150,000 [R1114] 0 - 0 STA [R563] 1200 2012 [S7542] [T3914]
antillarum 2005 - 2007 1 - 5,000 Best guess [R1021] 2005 - 2007 STA? No idea [R1021] 1 2012 [S7543] [T3915]
antarcticus 2005 - 2011 25,000 - 100,000 Best guess [R1092] [R1158] [R1183] [R1191] 2001 - 2010 STA Reasonable [R119] 1000 2012
Podilymbus gigas (Atitlan Grebe)
Guatemala 0 - 0 0 - 0 [R326] 1980 - 1987 EXT [R326] -1 0
Poliocephalus poliocephalus (Hoary-headed Grebe)
Australia, New Zealand 1997 - 2011 25,000 - 1,000,000 Best guess [R236] [R341] [R1101] 1982 - 2011 FLU Poor [R1101] 10000 2012 [S7546]
Poliocephalus rufopectus (New Zealand Grebe)
New Zealand 2005 - 2005 1,700 - 1,800 [R64] 1995 - 2005 DEC [R64] 15 2012
Podiceps major (Great Grebe)
major, Brazil-C Chile 2011 - 2011 10,000 - 25,000 Best guess [R1011] [R1183] 2001 - 2010 STA Poor [R1011] [R1183] 250 2012
major, Peru 2011 - 2011 5,000 - 15,000 Best guess [R1009] 2001 - 2010 STA Poor [R1009] 85 2012
navasi 2001 - 2001 25,000 - 100,000 Best guess [R570] 1990 - 2000 STA [R570] 1000 2012
Podiceps grisegena (Red-necked Grebe)
grisegena, North-west Europe (win) 1990 - 2000 42,000 - 60,000 Expert opinion [R63] 1990 - 2000 DEC Poor [R63] 500 2012
grisegena, Black Sea & Mediterranean (win) 1990 - 2000 41,000 - 107,000 Expert opinion [R63] 1990 - 2000 DEC Poor [R63] 660 2012
grisegena, Caspian (win) 1987 - 1991 15,000 - 15,000 Expert opinion [R497] 1990 - 2000 STA No idea [R66] 150 2012
grisegena (balchashensis) 1987 - 1991 1 - 10,000 Best guess [R497] 0 - 0 Unknown No idea 100 2012 [P1423]
holboellii, E Asia 0 - 0 50,000 - 50,000 [R460] 0 - 0 Unknown No idea 500 2012 [S7555]
holboellii, North America 0 - 0 45,000 - 45,000 [R344] 0 - 0 Unknown No idea 450 2012
Podiceps cristatus (Great Crested Grebe)
cristatus, North-west & Western Europe 1990 - 2000 290,000 - 420,000 Expert opinion [R63] 1997 - 2007 DEC? No idea [R63] [R888] 3500 2012 [T3929]
cristatus, Black Sea & Mediterranean (win) 1990 - 2000 580,000 - 870,000 Expert opinion [R63] 1990 - 2000 DEC Poor [R63] 7100 2012
cristatus, Caspian & South-west Asia (win) 1987 - 1991 10,000 - 10,000 Expert opinion [R497] 1997 - 2007 Unknown No idea 100 2012 [T3931]
cristatus, South Asia (non-bre) 1987 - 1991 10,000 - 25,000 Best guess [R519] 1977 - 1991 INC [R519] 250 2012
infuscatus, Eastern Africa (Ethiopia to N Zambia) 1996 - 1996 1 - 1,000 Best guess [R191] 1984 - 1994 DEC Poor [R497] 1 2012 [P1432]
infuscatus, Southern Africa 2005 - 2005 1 - 10,000 Best guess [R668] 1999 - 2007 Unknown No idea 100 2012 [P1433] [T3934]
cristatus, E Asia (non-bre) 0 - 0 25,000 - 50,000 [R460] 0 - 0 Unknown No idea 350 2012 [S7563]
australis, Australia 2004 - 2011 1 - 25,000 Best guess [R341] 2001 - 2010 Unknown No idea 250 2012 [P1435] [S7564]
australis, New Zealand 2004 - 2004 340 - 350 Census based [R1106] 1980 - 2004 INC Reasonable [R1106] 3 2012 [P1436] [T3937]
Podiceps auritus (Horned Grebe)
auritus, North-west Europe (large-billed) 1990 - 2000 4,600 - 6,800 Expert opinion [R63] 1990 - 2000 STA Poor [R63] 55 2012
auritus, North-east Europe (small-billed) 1990 - 2000 14,200 - 26,000 Expert opinion [R63] 1990 - 2000 DEC Reasonable [R63] 190 2012
auritus, Caspian & South Asia (win) 1987 - 1991 10,000 - 25,000 Best guess [R497] 1990 - 2000 STA No idea [R66] 250 2012
auritus, E Asia (non-bre) 0 - 0 10,000 - 25,000 Best guess [R460] 0 - 0 Unknown No idea 250 2012 [S7570]
cornutus 1993 - 2005 200,000 - 500,000 Census based [R1051] 1993 - 2005 DEC Good [R1051] 3200 2012
Podiceps nigricollis (Black-necked Grebe)
nigricollis, Europe/South & West Europe & North Africa 1990 - 2000 159,000 - 268,000 Expert opinion [R63] 1997 - 2007 DEC Reasonable [R888] 2100 2012 [T3944]
nigricollis, E Africa 2001 - 2001 10,000 - 25,000 Best guess [R190] 1991 - 2001 STA [R190] 250 2012 [P1444]
nigricollis, Western Asia/South-west & South Asia 1987 - 1991 25,000 - 25,000 Expert opinion [R519] 1997 - 2007 INC Poor [R888] 250 2012 [T3946]
gurneyi, Southern Africa 2010 - 2010 20,000 - 30,000 Expert opinion [R909] 1990 - 2000 INC Poor [R579] 240 2012 [S7575]
nigricollis, E Asia (non-bre) 1987 - 1991 10,000 - 100,000 Best guess [R519] 0 - 0 Unknown No idea 1000 2012
californicus 0 - 0 3,700,000 - 3,700,000 Expert opinion [R344] 1990 - 2012 STA [R1097] 37000 2012 [S7577] [T3949]
Podiceps andinus (Colombian Grebe)
Colombia 1987 - 1991 0 - 0 [R497] 1981 - 1995 EXT [R497] -1 0
Podiceps occipitalis (Southern Silvery Grebe)
occipitalis, S South America 1987 - 1991 100,000 - 100,000 [R497] 1984 - 1994 STA [R497] 1000 2012
occipitalis, Falkland Islands (Malvinas) 0 - 0 1,500 - 2,700 [R709] 0 - 0 Unknown No idea 20 2012 [P1451]
Podiceps juninensis (Northern Silvery Grebe)
juninensis 0 - 0 -1 - -1 1984 - 1994 DEC [R497] -1 0
Podiceps taczanowskii (Junin Grebe)
Peru 2001 - 2007 50 - 250 Census based [R1024] 2001 - 2007 DEC Good [R64] 1 2012
Podiceps gallardoi (Hooded Grebe)
Argentina & Chile 2011 - 2011 780 - 1,000 Expert opinion [R1094] 2001 - 2010 DEC Good [R1094] 9 2012
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Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on