Pluvier à capuchon

Identification

The hooded plover is medium in size for a plover, stocky, and pale in colour. Its length is 190 to 230 mm (7.5–9.1 in) and its wing-span 230 to 440 mm (9.1–17.3 in). 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.

Taxonomie

The hooded plover was formally described in 1818 by the French ornithologist Louis Pierre Vieillot under the current binomial name Charadrius cucullatus. The binomial name Charadrius cucullatus was at one time treated as a junior synonym of Charadrius rubricollis Gmelin, 1789, but in 1998 the American ornithologist Storrs L. Olson designated a lectotype for C. rubricollis and made it a junior synonym of Tringa lobata Linnaeus, 1758, now the red-necked phalarope Phalaropus lobatus. In the early 2000s the hooded plover was moved from the original genus Charadrius to the genus Thinornis, along with the shore plover. A molecular phylogenetic study published in 2015 found Thinornis was embedded within the genus Charadrius. This was confirmed by another study published in 2022, and as a result the hooded plover was moved back to Charadrius. The species is monotypic: no subspecies are recognised.

Nom scientifique

Thinornis cucullatus

Autorité

Vieillot, 1818

Ordre

Charadriiformes

Famille

Charadriidés

Genre

Thinornis

Répartition et habitat

Its natural habitats are freshwater lakes, freshwater marshes, coastal saline lagoons, and sandy beaches. Heavy populations are found on beaches with seaweed and dunes. It is threatened by habitat loss because of its small population and limited native range. It is a non-migratory inhabitant of coastal and subcoastal Western Australia, South Australia, New South Wales, Victoria and Tasmania, and is a vagrant in Queensland.

Migration

Resident species

Comportement

A clutch of 1–3 eggs is laid from August to March, which includes also the peak of the Austral summer 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 in shape, they measure 37 mm × 27 mm (1.46 in × 1.06 in). Eggs hatch in about 30 days. <p>The eastern population eats a variety of invertebrates but little is known of the diet of the western population. Specifically it eats insects, bivalves, and sandhoppers. 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. Males and females spend equal amounts of time incubating the eggs, although males tend to incubate more at night.

Conservation

BirdLife International has identified the following sites as being important for hooded dotterel conservation:

Tendance de la population

declining