The Port McArthur Tidal Wetlands System comprises a 994 km² tract of tidal wetlands on the south-west coast of the Gulf of

Carpentaria ''Carpentaria acuminata'' (carpentaria palm), the sole species in the genus ''Carpentaria'', is a Arecaceae, palm native to tropical coastal regions in the north of Northern Territory, Australia. It is a slender palm, growing to tall in the g ...

in the

Northern Territory The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an states and territories of Australia, Australian territory in the central and central northern regions of Australia. The Northern Territory ...

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. The land extends along the coast opposite the

Sir Edward Pellew Group of Islands The Sir Edward Pellew Group of Islands is situated in the south-west corner of the Gulf of Carpentaria, off the coast of the Northern Territory, Australia. History They were named in 1802 by Matthew Flinders in honour of Edward Pellew, 1st Vi ...

, incorporating the estuaries of the

McArthur McArthur may refer to: People * McArthur (surname) Geography * McArthur, Arkansas, an unincorporated town in Desha County * McArthur, California, in Shasta County * McArthur, Modoc County, California * McArthur, Ohio * McArthur Basin, a large int ...

and Wearyan Rivers. It is an important site for

wader 245px, A flock of Dunlins and Red knots">Red_knot.html" ;"title="Dunlins and Red knot">Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wikt:wade#Etymology 1, wading along shorelines and mudflat ...

s, or shorebirds.

Description

The site lies partly on traditionally owned Aboriginal land and partly on the Bing Bong, Manangoora and Greenbank

pastoral lease A pastoral lease, sometimes called a pastoral run, is an arrangement used in both Australia and New Zealand where government-owned Crown land is leased out to graziers for the purpose of livestock grazing on rangelands. Australia Pastoral lease ...

s. The intertidal mudflats are up to 5 km in width and, at low tide, join up with those of South-West Island.BirdLife International. (2011). Important Bird Areas factsheet: Port McArthur Tidal Wetlands System. Downloaded from http://www.birdlife.org on 22/09/2011.

Birds

The site has been identified by

BirdLife International BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding ...

as an

Important Bird Area An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations. IBA was developed and sites are identified by BirdLife Int ...

(IBA) because the mudflats have supported over 1% of the world populations of

grey-tailed tattler The grey-tailed tattler (''Tringa brevipes'', formerly ''Heteroscelus brevipes''Banks, Richard C.; Cicero, Carla; Dunn, Jon L.; Kratter, Andrew W.; Rasmussen, Pamela C.; Remsen, J. V. Jr.; Rising, James D. & Stotz, Douglas F. (2006):Forty-seventh ...

eastern curlew The Far Eastern curlew (''Numenius madagascariensis'') is a large shorebird most similar in appearance to the long-billed curlew, but slightly larger. It is mostly brown in color, differentiated from other curlews by its plain, unpatterned brown ...

s and

great knot __NOTOC__ The great knot (''Calidris tenuirostris'') is a small wader. It is the largest of the calidrid species. The genus name is from Ancient Greek ''kalidris'' or ''skalidris'', a term used by Aristotle for some grey-coloured waterside bird ...

s, as well as moderate numbers of

Asian dowitcher The Asian dowitcher (''Limnodromus semipalmatus'') is a rare medium-large wader. Description Adults have dark legs and a long straight dark bill, somewhat shorter than that of the long-billed dowitcher. The body is brown on top and reddish under ...

s. Other wader species recorded in substantial numbers include

curlew sandpiper The curlew sandpiper (''Calidris ferruginea'') is a small wader that breeds on the tundra of Arctic Siberia. It is strongly migratory, wintering mainly in Africa, but also in south and southeast Asia and in Australia and New Zealand. It is a va ...

marsh sandpiper The marsh sandpiper (''Tringa stagnatilis'') is a small wader. It is a rather small shank, and breeds in open grassy steppe and taiga wetlands from easternmost Europe to the Russian Far East. The genus name ''Tringa'' is the New Latin name given ...

s and

black-tailed godwit The black-tailed godwit (''Limosa limosa'') is a large, long-legged, long-billed shorebird first described by Carl Linnaeus in 1758. It is a member of the godwit genus, ''Limosa''. There are four subspecies, all with orange head, neck and chest ...

Great-billed heron The great-billed heron (''Ardea sumatrana'') is a wading bird of the heron family, resident from southeast Asia to Papua New Guinea and Australia. Description left, Juvenile The great-billed heron is a large bird, typically standing tall an ...

s occur in greater densities than recorded elsewhere in the Northern Territory. Small numbers of

beach stone-curlew The beach stone-curlew (''Esacus magnirostris'') also known as beach thick-knee is a large, ground-dwelling bird that occurs in Australasia, the islands of South-east Asia. At and , it is one of the world's largest shorebirds. At a mean of in ...

s are present.

Little tern The little tern (''Sternula albifrons'') is a seabird of the family Laridae. It was formerly placed into the genus ''Sterna'', which now is restricted to the large white terns. The genus name is a diminutive of ''Sterna'', "tern". The specific '' ...

s breed at sites along the coast. There are at least two large waterbird breeding colonies containing over 3000

egret Egrets ( ) are herons, generally long-legged wading birds, that have white or buff plumage, developing fine plumes (usually milky white) during the breeding season. Egrets are not a biologically distinct group from herons and have the same build ...

cormorant Phalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags. Several different classifications of the family have been proposed, but in 2021 the IOC adopted a consensus taxonomy of seven ge ...

s and

pied heron The pied heron (''Egretta picata''), also known as the pied egret is a bird found in coastal and subcoastal areas of monsoonal northern Australia as well as some parts of Wallacea and New Guinea. Taxonomy The species was originally described by ...

s. Non-waterbird species include

white-gaped honeyeater The white-gaped honeyeater (''Stomiopera unicolor'') is a species of bird in the family Meliphagidae. It is endemic to Australia. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forest ...

s and

canary white-eye The canary white-eye or yellow white-eye (''Zosterops luteus'') is a species of white-eye endemic to northern Australia in subtropical or tropical mangrove forests. Its common name reflects the circle of white feathers around its eye. Descrip ...

References

Important Bird Areas of the Northern Territory Gulf of Carpentaria Coastline of the Northern Territory Wetlands of the Northern Territory {{NorthernTerritory-geo-stub