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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
Ciconiiformes
Ardeidae
Egretta thula (Snowy Egret)
thula,Caribbean 2006 - 2007 12,500 - 36,100 Expert opinion [R1021] 0 - 0 Unknown No idea 210 2012 [P1624] [S6462]
thula, South America 2005 - 2011 300,000 - 1,000,000 Best guess [R1092] [R1141] [R1191] 2001 - 2010 STA Reasonable [R1092] [R1141] [R1191] 5500 2012 [P1625]
Egretta garzetta (Little Egret)
garzetta, Sub-Saharan Africa 2001 - 2001 200,000 - 500,000 Expert opinion [R190] 1990 - 2000 STA No idea [R66] 3200 2012
garzetta, Western Europe, NW Africa 1998 - 1998 125,000 - 143,000 Expert opinion [R280] 1997 - 2007 INC Good [R867] [R888] 1300 2012 [P1601] [T5355]
garzetta, Central & E Europe, Black Sea, E Mediterranean 1986 - 1997 44,000 - 72,400 Expert opinion [R280] 1988 - 1998 STA Poor [R280] 560 2012
garzetta, Western Asia/SW Asia, NE & Eastern Africa 1987 - 1991 25,000 - 100,000 Best guess [R519] 1997 - 2007 Unknown No idea 1000 2012 [T5357]
garzetta, West Indies 2006 - 2006 30 - 60 [R668] 1991 - 2001 INC [R522] 1 2012 [P1604] [S6442]
garzetta, South Asia 0 - 0 100,000 - 200,000 [R20] 0 - 0 Unknown No idea 1400 2012 [S6443]
garzetta, E, SE Asia 2001 - 2001 100,000 - 1,000,000 Best guess [R124] 1981 - 1991 STA [R124] 10000 2012
nigripes 1987 - 1991 25,000 - 1,000,001 Best guess [R519] 0 - 0 Unknown No idea 20000 2012
immaculata 2002 - 2004 25,000 - 100,000 Best guess [R341] [R1027] 0 - 0 Unknown No idea 1000 2012 [P1608] [S6446]
Egretta gularis (Western Reef-egret)
gularis, West Africa 1990 - 2000 10,000 - 100,000 Best guess [R232] 1991 - 2001 STA Poor [R190] 1000 2012 [P1609]
schistacea, North-east Africa & Red Sea 1990 - 2000 10,000 - 100,000 Best guess [R232] 1990 - 2000 STA No idea [R66] 1000 2012 [P1610]
schistacea, South-west Asia & South Asia 1987 - 1991 17,000 - 17,000 [R519] 1990 - 2000 STA No idea [R66] 170 2012 [P1611]
dimorpha, Madagascar 0 - 0 6,000 - 20,000 [R301] 0 - 0 DEC [R301] 110 2012
dimorpha, Aldabra & Amirante Is 0 - 0 3,000 - 9,000 [R552] 1991 - 2001 STA [R190] 50 2012
dimorpha, Coastal Eastern Africa 2001 - 2001 10,000 - 10,000 Best guess [R190] 1991 - 2001 STA Poor [R190] 100 2012
Egretta eulophotes (Chinese Egret)
E, SE Asia 2000 - 2010 3,000 - 4,100 Best guess [R1201] 0 - 0 STA [R65] 35 2012 [S6464]
Egretta sacra (Pacific Reef-egret)
sacra 2006 - 2006 100,000 - 1,000,000 Best guess [R668] 1985 - 2005 STA? [R668] 10000 2012 [S6465] [T5381]
albolineata 0 - 0 1,000 - 2,000 [R41] 1990 - 2000 STA [R41] 15 2012 [P1629]
Syrigma sibilatrix (Whistling Heron)
sibilatrix 2005 - 2011 25,000 - 100,000 Best guess [R1092] [R1183] [R1191] 2001 - 2010 STA Reasonable [R1092] [R1183] [R1191] 1000 2012
forstersmithi 2011 - 2011 10,000 - 10,000 Best guess [R1182] 2006 - 2010 FLU Poor [R1182] 100 2012
Pilherodius pileatus (Capped Heron)
C & S America 2005 - 2011 10,000 - 25,000 Best guess [R1240] 2001 - 2010 STA Poor [R1240] 250 2012
Nyctanassa violacea (Yellow-crowned Night-heron)
violacea, North America 0 - 0 75,000 - 150,000 [R106] 1966 - 2000 STA [R563] 1100 2012 [P1754]
violacea, Mexico to Honduras 0 - 0 -1 - -1 No estimate 0 - 0 Unknown No idea -1 0 [P1755] [S7720]
violacea, Socorro Island 0 - 0 -1 - -1 0 - 0 Unknown No idea -1 0 [P1756]
caliginis 2004 - 2004 900 - 900 Best guess [R1008] 1982 - 1992 STA [R482] 9 2012
cayennensis 0 - 0 -1 - -1 0 - 0 Unknown No idea -1 0
bancrofti 0 - 0 -1 - -1 No estimate 0 - 0 Unknown No idea -1 0 [S7724]
pauper 0 - 0 -1 - -1 0 - 0 Unknown No idea -1 0
Nycticorax nycticorax (Black-crowned Night-heron)
nycticorax, W Europe, NW Africa (bre) 2000 - 2005 61,000 - 97,000 Expert opinion [R431] 1990 - 2000 INC Poor [R1281] 770 2012 [P1762] [T5657]
hoactli, Caribbean 2006 - 2007 6,000 - 12,300 [R1021] 0 - 0 Unknown No idea 85 2012 [P1763] [S7727]
hoactli, northern South America (bre) 2005 - 2010 50,000 - 50,000 Best guess [R1092] [R1183] [R1191] 2001 - 2010 STA Poor [R1092] [R1183] [R1191] 500 2012 [P1764]
obscurus 2001 - 2001 25,000 - 1,000,000 Best guess [R570] 0 - 0 Unknown No idea 10000 2012
falklandicus, Falkland Islands (Malvinas) 0 - 0 5,700 - 10,800 [R709] 0 - 0 Unknown No idea 80 2012 [S7730]
nycticorax, C & E Europe/Black Sea & E Mediterranean (bre) 1990 - 2000 92,100 - 138,000 Expert opinion [R668] 1990 - 2000 INC Poor [R63] 1100 2012 [P1769] [T5662]
nycticorax, Western Asia/SW Asia & NE Africa 2002 - 2002 25,000 - 100,000 Best guess [R579] 1990 - 2000 STA No idea [R66] 1000 2012
nycticorax, Sub-Saharan Africa & Madagascar 2001 - 2001 25,000 - 1,000,000 Best guess [R190] 1991 - 2001 STA Poor [R190] 10000 2012
nycticorax, South Asia 0 - 0 100,000 - 150,000 [R32] 1977 - 1991 STA [R519] 1200 2012 [S7734]
nycticorax, E, SE Asia 2006 - 2006 100,000 - 1,000,000 Best guess [R668] 1981 - 1991 STA [R124] 10000 2012
hoactli, North America (bre) 1999 - 2011 75,000 - 150,000 Expert opinion [R106] 1990 - 2000 STA [R570] 1100 2012 [P1774] [S7736]
hoactli, Mexico 0 - 0 -1 - -1 0 - 0 Unknown No idea -1 0 [P1775]
hoactli, Central America 2005 - 2005 9,600 - 24,900 [R1114] 0 - 0 Unknown No idea 150 2012 [P1776]
Nycticorax duboisi (Reunion Night-heron)
Reunion 2005 - 2005 0 - 0 [R64] 1750 - 2005 EXT [R64] -1 0 [P527] [S6623]
Nycticorax mauritianus (Mauritius Night-heron)
Mauritius 2005 - 2005 0 - 0 [R64] 1750 - 2005 EXT [R64] -1 0 [P525] [S6621]
Nycticorax megacephalus (Rodrigues Night-heron)
Rodrigues 2005 - 2005 0 - 0 [R64] 1800 - 2005 EXT [R64] -1 0 [P528] [S6624]
Calherodius leuconotus (White-backed Night-heron)
Africa 0 - 0 25,000 - 100,000 Best guess [R192] 1991 - 2001 STA [R190] 1000 2012 [P1782]
Nycticorax caledonicus (Rufous Night-heron)
caledonicus 0 - 0 2,000 - 4,000 [R41] 1990 - 2000 STA [R41] 30 2012
manillensis 0 - 0 -1 - -1 0 - 0 Unknown No idea -1 0 [P1778]
pelewensis 2001 - 2001 1 - 10,000 Best guess [R202] 0 - 0 Unknown No idea 100 2012
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Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on