The hooded dotterel or hooded plover (''Thinornis cucullatus'') is a species of bird in the family

Charadriidae The bird family Charadriidae includes the plovers, dotterels, and lapwings, about 64 to 68 species in all. Taxonomy The family Charadriidae was introduced (as Charadriadæ) by the English zoologist William Elford Leach in a guide to the con ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to southern

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 ...

, where it inhabits ocean beaches and subcoastal lagoons. There are two recognised subspecies which form isolated eastern and western populations. The eastern subspecies is of greater conservation concern, with listings varying from Vulnerable in

South Australia South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...

and

Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...

to Critically Endangered in

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

Taxonomy

The hooded dotterel was placed in

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

''Charadrius'' but in the early 2000s it was reclassified into the genus ''Thinornis'', along with

shore plover The shore plover ( mi, tūturuatu, Moriori: ''tchūriwat’'', ''Thinornis novaeseelandiae''), also known as the shore dotterel, is a small plover endemic to New Zealand. Once found all around the New Zealand coast, it is now restricted to a few ...

(''Thinornis novaeseelandiae''). In 2000 the number of mature individuals was estimated at 7,000. Alternative common names include: hooded plover, hoody, ''pluvier à camail'' (in French), ''kappenregenpfeifer'' (in German), and ''chorlito encapuchado'' (in Spanish).

Subspecies

Two subspecies of the hooded dotterel are now recognised. * ''T. c. cucullatus'' (Vieillot, 1818) southern Australia,

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

and nearby islands. The population stands at 3000 and is declining. * ''T. c. tregellasi'' ( Mathews, 1912)

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

, coasts and inland lakes, Cranbrook,

Yalgorup National Park Yalgorup National Park is a national park in Western Australia, 105 km south of Perth, and directly south of Mandurah, Western Australia, Mandurah. The park is located on the western edge of the Swan Coastal Plain and contains a chain of ab ...

and points south. The population stands at 4000 and appears to be stable.

Description

The hooded dotterel is medium in size for a plover, stocky, and pale in colour. Its length is and its wing-span . It has a black hood and throat with a white collar. Its red bill has a black tip. It has a red eye ring and orange legs. Underparts are white. Males and females are similar. Adults and juveniles are similar except the juveniles do not have the black head and hindneck, which are instead a sandy brown.

Behaviour

clutch A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). ...

of 1–3 eggs is laid from August to March, which includes also the peak of the

Austral summer Summer is the hottest of the four temperate seasons, occurring after spring and before autumn. At or centred on the summer solstice, the earliest sunrise and latest sunset occurs, daylight hours are longest and dark hours are shortest, ...

tourist season in its range and it is thereby heavily impacted by human activities. The eggs are a matte beige or cream colour heavily sprinkled with dark brown and lavender markings, especially at the larger end of the egg.

Pyriform Piriform, sometimes ''pyriform'', means pear-shaped (from Latin ''pirum'' "pear" and ''forma'' "shape"). It may also refer to: Going pear-shaped * Going wrong or going pear-shaped Anatomy * Piriform aperture, more commonly known as anterior n ...

in shape, they measure . Eggs hatch in about 30 days. The eastern population eats a variety of

invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate ...

s but little is known of the diet of the western population. Specifically it eats insects,

bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...

s, and

sandhopper Talitridae is a family of amphipods. Terrestrial species are often referred to as landhoppers and beach dwellers are called sandhoppers or sand fleas. The name sand flea is misleading, though, because these talitrid amphipods are not siphonapter ...

s. It is usually seen in pairs or small groups near the water. For breeding it will dig a shallow scrape in sand or gravel above high-water mark and line it with pebbles, seaweed, and other debris.

Threats

The population of hooded dotterels has declined in eastern Australia as a result of disturbance by people, dogs, cats and horses, as well as predation by

silver gull The silver gull (''Chroicocephalus novaehollandiae'') is the most common gull of Australia. It has been found throughout the continent, but particularly at or near coastal areas. It is smaller than the Pacific gull (''Larus pacificus''), which ...

s (''Larus novaehollandiae''),

raven A raven is any of several larger-bodied bird species of the genus ''Corvus''. These species do not form a single taxonomic group within the genus. There is no consistent distinction between "crows" and "ravens", common names which are assigned t ...

s (''Corvus spp'') and introduced

fox Foxes are small to medium-sized, omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull, upright, triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or ''brush''). Twelve sp ...

es.

Fox Foxes are small to medium-sized, omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull, upright, triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or ''brush''). Twelve sp ...

predation Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the ...

is a major threat to the western subspecies.

Distribution and habitat

Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

s are freshwater

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

s, freshwater

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at ...

es, coastal saline

lagoon A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses. Lagoons are commonly divided into ''coastal lagoons'' (or ''barrier lagoons'') a ...

s, and sandy beaches. Heavy populations are found on beaches with seaweed and dunes. It is threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

because of its small population and limited native range. It is a non-migratory inhabitant of coastal and subcoastal

and

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

, and is a vagrant in

Conservation

Important Bird Areas

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 ...

has identified the following sites as being important for hooded dotterel conservation: ;South Australia *

Coffin Bay Coffin Bay, originally Coffin's Bay, is a town at the southern extremity of the Eyre Peninsula, a wheat growing area of South Australia. At the 2016 census, Coffin Bay had a population of 611. Material was copied from this source, which is avai ...

* Coorong *

Kangaroo Island Kangaroo Island, also known as Karta Pintingga (literally 'Island of the Dead' in the language of the Kaurna people), is Australia's third-largest island, after Tasmania and Melville Island. It lies in the state of South Australia, southwest ...

;Tasmania *

Cape Portland Cape Portland, officially Luemerrernanner / Cape Portland, is both a geographical feature and a locality near the north-eastern tip of Tasmania, Australia. The cape points west across Ringarooma Bay, where the Ringarooma River empties into the ...

* Eastern Flinders Island * King Island * Marion Bay * Melaleuca to Birchs Inlet * North-west Tasmanian Coast * Robbins Passage and Boullanger Bay * St Helens ;Victoria *

Corner Inlet The Corner Inlet is a bay located south-east of Melbourne in the South Gippsland region of Victoria, Australia. Of Victoria's large bays it is both the easternmost and the warmest. It contains intertidal mudflats, mangroves, salt marsh and s ...

* Discovery Bay to Piccaninnie Ponds *

Phillip Island Phillip Island (Boonwurrung: ''Corriong'', ''Worne'' or ''Millowl'') is an Australian island about south-southeast of Melbourne, Victoria. The island is named after Governor Arthur Phillip, the first Governor of New South Wales, by explorer ...

* Port Fairy to Warrnambool *

Yambuk Yambuk is a town in Victoria (Australia), Victoria, Australia. The name Yambuk is an Australian Aboriginal languages, Aboriginal word thought to mean "red kangaroo", "full moon" or "big water". Shell middens in the limestone cliffs to the eas ...

;Western Australia * Lake Gore System * Lake Warden System *

Pink Lake A pink lake is a lake that has a red or pink colour. This is often caused by the presence of salt-tolerant algae that produces carotenoids, such as ''Dunaliella salina'', usually in conjunction with specific bacteria, which may vary from lake ...

* Yalgorup

References

External links

*
Hooded plover threats and recovery strategies
{{Taxonbar, from=Q10825107

hooded dotterel The hooded dotterel or hooded plover (''Thinornis cucullatus'') is a species of bird in the family Charadriidae. It is endemic to southern Australia, where it inhabits ocean beaches and subcoastal lagoons. There are two recognised subspecies whic ...

Birds of Western Australia Birds of South Australia Birds of Victoria (Australia) Birds of Tasmania Endemic birds of Australia

Taxonomy articles created by Polbot