Ruddy Turnstone (species: Arenaria interpres) in Cook Islands (Gaia Guide)
Arenaria interpres
Ruddy Turnstone


©Leo: Photo taken at Wallagoot.

©barloventomagico on Flickr: Ruddy Turnstone (Arenaria interpres) in breeding plumage

©Alec Brennan: Ruddy Turnstone (Arenaria interpres)
Kingdom Animalia
Phylum Chordata
Class Aves
Order Charadriiformes
Family Scolopacidae
Genus Arenaria
Species Arenaria interpres
Status least concern

Colours

              

Distinguishing features

The legs are fairly short at 3.5 centimetres and are bright orange.

At all seasons, the plumage is dominated by a harlequin-like pattern of black and white. Breeding birds have reddish-brown upper parts with black markings. The head is mainly white with black streaks on the crown and a black pattern on the face. The breast is mainly black apart from a white patch on the sides. The rest of the underparts are white. In flight it reveals a white wingbar, white patch near the base of the wing and white lower back, rump and tail with dark bands on the uppertail-coverts and near the tip of the tail. The female is slightly duller than the male and has a browner head with more streaking.

Non-breeding adults are duller than breeding birds and have dark grey-brown upperparts with black mottling and a dark head with little white. Juvenile birds have a pale brown head and pale fringes to the upperpart feathers creating a scaly impression. (Wikipedia)

Size

  • From 22 cm to 24 cm (Length of specimen)

Weight

  • From 0.085 kg to 0.15 kg

Wingspan

  • From 50 cm to 57 cm

Synonyms

Distribution


©Atlas of Living Australia: Australian distribution

Distribution and habitat preferences

It breeds in northern latitudes, usually no more than a few kilometres from the sea. In the Americas, the species winters on coastlines from Washington and Massachusetts southwards to the southern tip of South America although it is scarce in southern parts of Chile and Argentina and is only an unconfirmed vagrant in the Falkland Islands.

In Europe it winters in western regions from Iceland, Norway and Denmark southwards. Only small numbers are found on Mediterranean coasts. In Africa it is common all the way down to South Africa with good numbers on many offshore islands.

In Asia it is widespread in the south with birds wintering as far north as southern China and Japan (mainly in the Ryukyu Islands). It occurs south to Tasmania and New Zealand and is present on many Pacific islands.

Some non-breeding birds remain year round in many parts of the wintering range, with some of those birds still taking on breeding plumage in the spring and summer. (Wikipedia)

Audio recordings


download

Call in flight

© Ian Davies
(source)

download

Adult

© Stein Ø. Nilsen
(source)

Diet

They typically feed on insects in the summer, though their diet is extended to other invertebrates such as crustaceans, mollusks, and worms in other seasons.

They have also been observed preying on the eggs of other bird species such as gulls, terns, ducks, and even other turnstones, though this behavior is uncommon. (Wikipedia)

Web resources

References

  • Simpson, K., N. Day and P. Trusler (2004). Field Guide to Birds of Australia: 7th Edition Penguin Group (Australia), Camberwell, Victoria.
  • Smith, G.C. (1987). The birds of Eagle Island, a tropical sand cay on the northern Great Barrier Reef, Australia, The Sunbird, 17(1): 1-11. LIRS catalog number 245.