List of Gruiformes by population

The population of birds
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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
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This is a list of Gruiformes 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 Gruiformes have had their numbers quantified.

Species by global population

Common name	Binomial name	Population	Status	Trend	Notes	Image
Makira woodhen	Gallinula silvestris	50	CR	Unknown	Maximum estimate; possibly extinct.
New Caledonian rail	Gallirallus lafresnayanus	50	CR	Unknown	Maximum estimate; possibly extinct.
Samoan wood rail	Gallinula pacifica	50	CR	Unknown	Maximum estimate; possibly extinct.
Plain-flanked rail	Rallus wetmorei	50 – 249	EN
Zapata rail	Cyanolimnas cerverai	70 – 400	CR
Lord Howe woodhen	Gallirallus sylvestris	220 – 230	EN		Endemic to Lord Howe Island.
Great Indian bustard	Ardeotis nigriceps	300	CR
Takahē	Porphyrio hochstetteri	340- 350	EN
Bengal florican	Houbaropsis bengalensis	350 – 1500	CR
Kagu	Rhynochetos jubatus	350 – 1500	EN
Rusty-flanked crake	Laterallus levraudi	350 – 1500	EN
Slender-billed flufftail	Sarothrura watersi	350 – 1500	EN
Whooping crane	Grus americana	382	EN		Number refers to wild population only, of which 266 are considered self-sustaining.
Okinawa rail	Gallirallus okinawae	720	EN
Buff-breasted buttonquail	Turnix olivii	750	EN
White-winged flufftail	Sarothrura ayresi	865 – 880	EN
Madagascan wood rail	Canirallus kioloides	1000 – 2000	LC
Junin crake	Laterallus tuerosi	1000 – 2499	EN
Masked finfoot	Heliopais personatus	1000 – 2499	EN
Talaud rail	Gymnocrex talaudensis	1000 – 2499	EN
Chestnut-headed flufftail	Sarothrura lugens	1000 – 10 000	LC
Spotted rail	Pardirallus maculatus	1000 – 10 000	LC	Unknown
Streaky-breasted flufftail	Sarothrura boehmi	1000 – 10 000	LC
Bogotá rail	Rallus semiplumbeus	1500 – 4000	EN
Brown wood rail	Aramides wolfi	1500 – 4000	VU		Preliminary estimate.
Hawaiian coot	Fulica alai	2000 – 4000	VU
Lesser florican	Sypheotides indicus	2200	EN
Madagascan rail	Rallus madagascariensis	2500 – 10 000	VU
Pink-legged rail	Gallirallus insignis	2500 – 9999	NT
Rouget's rail	Rougetius rougetii	2500 – 9999	NT
Roviana rail	Gallirallus rovianae	2500 – 9999	NT
Red-crowned crane	Grus japonensis	2750	EN
Clapper rail	Rallus longirostris	3500 – 3700	LC
Auckland rail	Lewinia muelleri	3500 – 4000	VU		Estimate is for mature population only.
Siberian crane	Leucogeranus leucogeranus	3500 – 4000	CR		Western subpopulation is 4.
Blue-faced rail	Gymnocrex rosenbergii	3500 – 15 000	VU
Brown mesite	Mesitornis unicolor	3500 – 15 000	VU
Dot-winged crake	Porzana spiloptera	3500 – 15 000	VU
Invisible rail	Habroptila wallacii	3500 – 15 000	VU
Rufous-faced crake	Laterallus xenopterus	3500 – 15 000	VU		Preliminary estimate.
Sakalava rail	Amaurornis olivieri	3500 – 15 000	EN
Snoring rail	Aramidopsis plateni	3500 – 15 000	VU
Sumba buttonquail	Turnix everetti	3500 – 15 000	VU
Swinhoe's rail	Coturnicops exquisitus	3500 – 15 000	VU
Talaud bush-hen	Amaurornis magnirostris	3500 – 15 000	VU
Calayan rail	Gallirallus calayanensis	3800 – 6500	VU
White-throated rail	Dryolimnas cuvieri	5100 – 7500	LC
White-naped crane	Grus vipio	5500 – 6500	VU
Wattled crane	Bugeranus carunculatus	6000 – 8000	VU
Black-breasted buttonquail	Turnix melanogaster	7500	NT
White-breasted mesite	Mesitornis variegatus	8000	VU		Minimum estimate.
Inaccessible Island rail	Atlantisia rogersi	8400	VU
Red-eyed crake	Porzana atra	9300	VU
Horned coot	Fulica cornuta	10 000 – 19 999	NT
Woodford's rail	Nesoclopeus woodfordi	10 000 – 19 999	NT
Andaman crake	Rallina canningi	10 000 – 25 000	NT
Austral rail	Rallus antarcticus	10 000 – 25 000	VU
Yellow rail	Coturnicops noveboracensis	10 000 – 25 000	LC
White-breasted waterhen	Amaurornis phoenicurus	10 000 – 100 000	LC	Unknown
Black-necked crane	Grus nigricollis	10 070 – 10 970	VU
Hooded crane	Grus monacha	11 600	VU
Blue korhaan	Eupodotis caerulescens	12 000 – 15 000	NT
Gough moorhen	Gallinula nesiotis	13 000 – 14 000	VU
Sarus crane	Grus antigone	19 000 – 21 800	VU
Galapagos crake	Laterallus spilonotus	20 000 – 49 999	VU
Ruddy crake	Laterallus ruber	20 000 – 49 999	LC	Unknown
Uniform crake	Amaurolimnas concolor	20 000 – 49 999	LC
Yellow-breasted crake	Porzana flaviventer	20 000 – 49 999	LC	Unknown
Blue crane	Anthropoides paradiseus	25 580	VU		Minimum estimate.
Black crowned crane	Balearica pavonina	43 000 – 70 000	VU		Divided into two subspecies: B. p. pavonina (15 000) & B. p. ceciliae (28 000 – 55 000).
Great bustard	Otis tarda	44 000 – 57 000	VU
Crested crane	Balearica regulorum	50 000 – 64 000	EN		Numbers are from 2004; considered too high due to the rapidly decreasing population.
Rufous-necked wood rail	Aramides axillaris	50 000 – 499 999	LC	Unknown
Ludwig's bustard	Neotis ludwigii	56 000 – 81 000	EN		Population may be lower due to an apparent recent spate of power-line collisions.
Subdesert mesite	Monias benschi	98 000 – 152 000	VU
Australian bustard	Ardeotis australis	100 000	LC		Maximum estimate.
Houbara bustard	Chlamydotis undulata	106 000 – 110 000	VU		Preliminary estimate.
Weka	Gallirallus australis	107 000 – 177 000	VU		Divided into four subspecies: G. a. australis (50 000 – 100 000), G. a. greyi (~11 000), G. a. hectori (38 000 – 58 000), & G. a. scotti (<8000)
Demoiselle crane	Anthropoides virgo	230 000 – 280 000	LC		Minimum estimate.
Little bustard	Tetrax tetrax	260 000	NT		Minimum estimate.
Common crane	Grus grus	360 000 – 370 000	LC	Unknown
Sunbittern	Eurypyga helias	500 000 – 4 999 999	LC
Sungrebe	Heliornis fulica	500 000 – 4 999 999	LC	Unknown
Black crake	Amaurornis flavirostra	1 000 000	LC	Unknown
Limpkin	Aramus guarauna	1 000 000	LC
Red-gartered coot	Fulica armillata	1 000 000	LC	Unknown
White-winged coot	Fulica leucoptera	1 000 000	LC
Plumbeous rail	Pardirallus sanguinolentus	1 000 000 – 2 000 000	LC
Common moorhen	Gallinula chloropus	3 900 000 – 8 100 000	LC	Unknown
Grey-necked wood rail	Aramides cajaneus	5 000 000 – 50 000 000	LC
Corn crake	Crex crex	5 450 000 – 9 720 000	LC		Preliminary estimate; may be lower.
American coot	Fulica americana	6 000 000	LC

See also

• Lists of birds by population
• Lists of organisms by population