Red-necked Phalarope

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Red-necked Phalarope
Breeding plumage
Winter plumage
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Scolopacidae
Genus: Phalaropus
Species: P. lobatus
Binomial name
Phalaropus lobatus
(Linnaeus, 1758)
Range map of the Red-necked Phalarope: Breeding grounds (red) and wintering grounds (blue)

The Red-necked Phalarope (Phalaropus lobatus) is a small wader. This phalarope breeds in the Arctic regions of North America and Eurasia. It is migratory, and, unusually for a wader, winters at sea on tropical oceans.

Red-necked Phalarope is about 18 cm (7 in) in length, with lobed toes and a straight, fine bill. The breeding female is predominantly dark grey above, with a chestnut neck and upper breast, black face and white throat. The breeding male is a duller version of the female. They have lobed toes to assist with their swimming. Young birds are grey and brown above, with buff underparts and a black patch through the eye. In winter, the plumage is essentially grey above and white below, but the black eyepatch is always present. They have a sharp call described as a whit or twit.

The typical avian sex roles are reversed in the three phalarope species. Females are larger and more brightly coloured than males. The females pursue and fight over males, and will defend their mate from other females until the clutch is complete and the male begins incubation. The males perform all incubation and chick-rearing activities, while the females may attempt to find another mate. If a male loses his eggs to predation, he may re-pair with his original mate or a new female to try again. Once it becomes too late in the breeding season to start new nests, females begin their southward migration, leaving the males to incubate the eggs and look after the young. Clutch size is usually 4, but can be fewer. The young mainly feed themselves and are able to fly within 20 days of hatch.

Red-necked Phalarope chick.

When feeding, a Red-necked Phalarope will often swim in a small, rapid circle, forming a small whirlpool. This behaviour is thought to aid feeding by raising food from the bottom of shallow water. The bird will reach into the center of the vortex with its bill, plucking small insects or crustaceans caught up therein. On the open ocean, they are often found where converging currents produce upwellings. During migration, some flocks stop over on the open waters at the mouth of the Bay of Fundy to take advantage of food stirred up by tidal action.

Almost all of the nonbreeding season is spent in open water. As this species rarely comes into contact with humans, it can be unusually tame.

The Red-necked Phalarope is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.

In Britain and Ireland[edit]

Red-necked Phalarope.

The Red-necked Phalorope is a rare and localised breeding species in the British Isles, which lie on the extreme edge of its world range. The most reliable place for them is the Shetland Isles, particularly the Loch of Funzie on Fetlar, with a few birds breeding elsewhere in Scotland in the Outer Hebrides (e.g. at Loch na Muilne, where a "phalarope watchpoint" has been set up) and sometimes the Scottish Mainland in Ross-shire or Sutherland. They have also bred in western Ireland, although there are very few breeding records since the 1970s.

The tracking of a tagged bird from Fetlar unexpectedly revealed that it wintered with a North American population in the tropical Pacific Ocean;[2] it took a 16,000 mile round trip across the Atlantic via Iceland and Greenland, then south down the Eastern seaboard of America, across the Caribbean and Mexico, before ending up off the coast of Ecuador and Peru. For this reason, it is suspected that the Shetland population could be an offshoot of a North American population rather than the geographically closer Scandinavian population that is believed to winter in the Arabian Sea.[3]

References[edit]

  1. ^ BirdLife International (2012). "Phalaropus lobatus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Staff writer (January 9, 2014). "Tag uncovers Shetland bird's 16,000 mile winter migration". BBC. Retrieved January 10, 2014. 
  3. ^ Urquhart, Frank (January 10, 2014). "From Shetland to Peru: epic bird migration tracked". The Scotsman. Retrieved January 10, 2014. 

Bibliography[edit]

  • Shorebirds by Hayman, Marchant and Prater ISBN 0-395-60237-8
  • Bull, John; Farrand, Jr., John (April 1984). The Audubon Society Field Guide to North American Birds, Eastern Region. New York: Alfred A. Knopf. ISBN 0-394-41405-5. 

External links[edit]