List of Pelecaniformes by population

The population of birds
Lists

Accipitriformes (hawks, eagles, vultures, and kites)
Anseriformes (waterfowl)
Apodiformes (swifts and hummingbirds)
Caprimulgiformes (nightjars and relatives)
Charadriiformes (gulls and relatives)
Ciconiiformes (storks and relatives)
Columbiformes (doves and pigeons)
Coraciiformes (kingfishers and relatives)
Cuculiformes (cuckoos and relatives)
Falconiformes (falcons and relatives)
Galliformes (gamebirds)
Gaviiformes (loons or divers)
Gruiformes (cranes and relatives)
Passeriformes (perching birds)
Pelecaniformes (pelicans and relatives)
Phoenicopteriformes (flamingos)
Piciformes (woodpeckers and relatives)
Podicipediformes (grebes)
Procellariiformes (albatrosses and petrels)
Psittaciformes (parrots)
Sphenisciformes (penguins)
Strigiformes (owls)
Struthioniformes (ratites)
Tinamiformes (tinamous)
Trogoniformes (trogons and quetzals)
Key

Conservation status

  Extinct in the wild (EW)
  Critically endangered (CR)
  Endangered (EN)
  Vulnerable (VU)
  Near threatened (NT)
  Least concern (LC)
  Data deficient (DD)
Related
Lists of organisms by population
Lists of mammals by population
List of Late Quaternary prehistoric bird species
List of extinct birds
Lists of birds by region

This is a list of Pelecaniformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.

This list is not comprehensive, as not all Pelecaniformes have had their numbers quantified.

Species by global population

Common name Binomial name Population Status Trend Notes Image
Dwarf ibis Bostrychia bocagei 190-2,500[1] CR[1] Decrease[1] Estimate calculated from density and area estimates. Equal to 130-1,700 mature individuals.[1]
Northern bald ibis Geronticus eremita 200-249[2] EN[2] Steady[2] Estimate for mature individuals only. Species is considered regionally extinct in Europe.[2]
Giant ibis Thaumatibis gigantea 290[3] CR[3] Decrease[3] Minimum estimate. Equal to 194 mature individuals.[3]
White-eared night-heron Oroanassa magnifica 350-1,500[4] EN[4] Decrease[4] Equal to 250-999 mature individuals.[4]
Rough-faced shag Phalacrocorax carunculatus 350 – 1500[5] VU[5] Steady[5]
Asian crested ibis Nipponia nippon 550[6] EN[6] Increase[6] Equal to 330 mature individuals.[6]
Bounty shag Phalacrocorax ranfurlyi 620[7] VU[7] Steady[7] Minimum estimate.[7]
White-shouldered ibis Pseudibis davisoni 1,000[8] CR[8] Decrease[8] Minimum estimate. Equal to 670 mature individuals.[8]
Fasciated tiger-heron Tigrisoma fasciatum 1,000-10,000[9] LC[9] Unknown[9] Equal to 670-6,700 mature individuals.[9]
Schrenck's bittern Ixobrychus eurhythmus 1,000-25,000[10] LC[10] Decrease[10] Equal to 670-17,000 mature individuals.[10]
Wattled ibis Bostrychia carunculata 1,000-25,000[11] LC[11] Unknown[11] Equal to 670-17,000 mature individuals.[11]
Chatham shag Phalacrocorax onslowi 1070[12] CR[12] Decrease[12]
Pitt shag Phalacrocorax featherstoni 1400[13] EN[13] Decrease[13]
Australasian bittern Botaurus poiciloptilus 1,500-4,000[14] VU[14] Decrease[14] Equal to 1,000-2,499 mature individuals.[14]
Flightless cormorant Phalacrocorax harrisi 1679[15] VU[15] Steady[15]
Malayan night-heron Gorsachius melanolophus 2,000-20,000[16] LC[16] Unknown[16] Equal to 1,300-13,000 mature individuals. Subpopulations include 100-10,000 breeding pairs in Taiwan, and 100-10,000 in Japan.[16]
Forest bittern Zonerodius heliosylus 2,500-9,999[17] NT[17] Decrease[17] Equal to 1,500-7,000 mature individuals.[17]
Madagascar sacred ibis Threskiornis bernieri 2,600-3,250[18] EN[18] Decrease[18] Equal to 1,733-2,166 mature individuals.[18]
Olive ibis Bostrychia olivacea 3,000-45,000[19] LC[19] Decrease[19] Estimate is for mature individuals only.[19]
Christmas frigatebird Fregata andrewsi 3600 – 7200[20] VU[20] Decrease[20]
Black-faced spoonbill Platalea minor 3,941[21] EN[21] Increase[21] Equal to approximately 2,250 mature individuals.[21]
Auckland shag Phalacrocorax colensoi 4500[22] VU[22] Steady[22]
Bronze shag Phalacrocorax chalconotus 5000 – 8000[23] VU[23] Decrease[23] Numbers may be overestimated.[23]
Shoebill Balaeniceps rex 5000 – 8000[24] VU[24] Decrease[24]
Red-billed tropicbird Phaethon aethereus 5000 – 20 000[25] LC[25] Decrease[25]
Southern bald ibis Geronticus calvus 6,500-8,000[26] VU[26] Decrease[26] Equal to 3,300-4,000 mature individuals and 1,650-2,000 breeding pairs.[26]
African spoonbill Platalea alba 7,300-73,000[27] LC[27] Steady[27] Estimate is for mature individuals only.[27]
Japanese night-heron Gorsachius goisagi 7,500-15,000[28] VU[28] Decrease[28] Equal to 5,000-9,999 mature individuals.[28]
Campbell shag Phalacrocorax campbelli 8000[29] VU[29] Steady[29] Estimate may be dated.[29]
Bank cormorant Phalacrocorax neglectus 8400[30] EN[30] Decrease[30]
Crowned cormorant Phalacrocorax coronatus 8700[31] NT[31] Steady[31]
Abbott's booby Papasula abbotti 9000[32] EN[32] Decrease[32]
Madagascar crested ibis Lophotibis cristata 10,000[33] NT[33] Decrease[33] Equal to 6,700 mature individuals.[33]
Puna ibis Plegadis ridgwayi 10,000-15,000[34] LC[34] Decrease[34] Equal to 6,700-10,000 mature individuals.[34]
Sharp-tailed ibis Cercibis oxycerca 10,000-25,000[35] LC[35] Steady[35] Equal to 6,700-17,000 mature individuals.[35]
Dalmatian pelican Pelecanus crispus 10 000 – 13 900[36] VU[36] Decrease[36]
Spot-billed pelican Pelecanus philippensis 13 000 – 18 000[37] NT[37] Decrease[37]
Black-headed ibis Threskiornis melanocephalus 15,000-30,000[38] NT[38] Decrease[38] Equal to 10,000-19,999 mature individuals. Subpopulation estimates include 10,000 in south Asia, 10,000 in south-east Asia, and 100 in east Asia.[38]
White-backed night-heron Calherodius leuconotus 25,000-100,000[39] LC[39] Decrease[39]
White-crested tiger-heron Tigrionrnis leucolopha 25,000-100,000[40] LC[40] Decrease[40]
Black-faced ibis Theristicus melanopis 25,000-100,000[41] LC[41] Steady[41]
Ascension frigatebird Fregata aquila 25 000 – 32 000[42] VU[42] Unknown[42]
Japanese cormorant Phalacrocorax capillatus 25 000 – 100 000[43] LC[43] Unknown[43]
Rufescent tiger-heron Tigrisoma lineatum 27,700-105,500[44] LC[44] Steady[44] Equal to 18,000-70,000 mature individuals.[44]
Red-legged cormorant Phalacrocorax gaimardi 30 000[45] NT[45] Decrease[45]
Nazca booby Sula granti 30 000[46] LC[46] Decrease[46] Minimum estimate.[46]
Red-tailed tropicbird Phaethon rubricauda 32 000[47] LC[47] Steady[47] Minimum estimate.[47]
Oriental darter Anhinga melanogaster 33 000[48] NT[48] Decrease[48] Minimum estimate.[48]
White-tailed tropicbird Phaethon lepturus 50 000[49] LC[49] Decrease[49] Minimum estimate.[49]
Pinnated bittern Botaurus pinnatus 50,000-499,999[50] LC[50] Steady[50] Estimate is for mature individuals only.[50]
Agami heron Agamia agami 50,000-499,999[51] VU[51] Unknown[51] Calculation may need to be revised. Actual global population may be smaller.[51]
Bare-throated tiger-heron Tigrisoma mexicanum 50,000-499,999[52] LC[52] Decrease[52]
Green ibis Mesembrinibis cayennensis 50,000-499,999[53] LC[53] Steady[53] Estimate is for mature individuals only.[53]
Eurasian spoonbill Platelea leucorodia 63,000-65,000[54] LC[54] Unknown[54] European subpopulation includes 20,400-30,500 mature individuals.[54]
Black bittern Ixobrychus flavicollis 63,000-320,000[55] LC[55] Decrease[55] Subpopulation at China is 100-100,000 breeding pairs.[55]
Pygmy cormorant Phalacrocorax pygmeus 85 000 – 180 000[56] LC[56] Increase[56]
Yellow bittern Ixobrychus sinensis 100,000-1,000,000[57] LC[57] Unknown[57]
Straw-necked ibis Threskiornis spinicollis 100,000-1,000,000[58] LC[58] Decrease[58]
Peruvian pelican Pelecanus thagus 100 000 – 1 000 000[59] NT[59] Increase[59]
Socotra cormorant Phalacrocorax nigrogularis 110 000[60] VU[60] Decrease[60]
Eurasian bittern Botaurus stellaris 115,000-340,000[61] LC[61] Decrease[61] European subpopulation includes 75,300-133,000 mature individuals.[61]
Cinnamon bittern Ixobrychus cinnamomeus 130,000-2,000,000[62] LC[62] Steady[62]
American white pelican Pelecanus erythrorhynchos 180 000[63] LC[63] Increase[63]
Brown booby Sula leucogaster 200 000[64] LC[64] Decrease[64] Minimum estimate.[64]
African sacred ibis Threskiornis aethiopicus 200,000-450,000[65] LC[65] Steady[65] Estimate is for mature individuals only.[65]
Spot-breasted ibis Bostrychia rara 200,000-510,000[66] LC[66] Decrease[66]
Glossy ibis Plegadis falcinellus 200,000-2,300,000[67] LC[67] Decrease[67] This estimate involves the European subpopulation of 56,500-75,400 mature individuals.[67]
White ibis Eudocimus albus 210,000-360,000[68] LC[68] Steady[68] Estimate is for mature individuals only.[68]
Striated heron Butorides striata 260,000-2,300,000[69] LC[69] Steady[69] Equal to 173,000-1,500,000 mature individuals. Will likely need to be revised under recent taxonomic changes.[69]
Red-faced cormorant Phalacrocorax urile 200 000[70] LC[70] Decrease[70] Minimum estimate.[70]
Cape cormorant Phalacrocorax capensis 200 000 – 250 000[71] NT[71] Steady[71]
Cape gannet Morus capensis 300 000[72] VU[72] Decrease[72] Mature population only (~150 000 pairs).[72]
Squacco heron Ardeola rallodies 370,000-780,000[73] LC[73] Steady[73] European subpopulation estimated at 30,000-51,700 mature individuals.[73]
Boat-billed heron Cochlearius cochlearius 500,000-4,999,999[74] LC[74] Decrease[74]
Black-crowned night-heron Nycticorax nycticorax 570,000-3,730,000[75] LC[75] Decrease[75] Subpopulations include 120,000-172,000 mature individuals in Europe.[75]
Common little bittern Ixobrychus minutus 630,000-1,110,000[76] LC[76] Decrease[76] Estimate is for mature individuals only. Further validation is needed.[76]
Northern gannet Morus bassanus 950 000 – 1 200 000[77] LC[77] Increase[77]
Red-footed booby Sula sula 1 000 000[78] LC[78] Decrease[78] Minimum estimate.[78]
White-faced ibis Plegadis chihi 1,200,000[79] LC[79] Increase[79]
Great cormorant Phalacrocorax carbo 1 400 000 – 2 900 000[80] LC[80] Increase[80]
Neotropic cormorant Phalacrocorax brasilianus 2 000 000[81] LC[81] Increase[81]
Guanay cormorant Phalacrocorax bougainvillii 2 500 000 – 4 999 999[82] NT[82] Decrease[82]

See also

References

  1. ^ a b c d IUCN (2020-06-09). "Bostrychia bocagei: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22697478A177028688". IUCN Red List of Threatened Species. 2020-06-09. doi:10.2305/iucn.uk.2021-3.rlts.t22697478a177028688.en.
  2. ^ a b c d IUCN (2018-08-07). "Geronticus eremita: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22697488A130895601". IUCN Red List of Threatened Species. 2018-08-07. doi:10.2305/iucn.uk.2018-2.rlts.t22697488a130895601.en.
  3. ^ a b c d IUCN (2018-08-18). "Thaumatibis gigantea: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22697536A134200680". IUCN Red List of Threatened Species. 2018-08-18. doi:10.2305/iucn.uk.2018-2.rlts.t22697536a134200680.en.
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