Red Phalarope

The Red Phalarope, known as Gray Phalarope in some regions, is the most pelagic of the three phalarope species, spending nearly all of its nonbreeding life far out at sea. It breeds in the high Arctic and shows a striking transformation from deep brick-red breeding plumage to pale gray winter feathers, with reversed sexual dichromatism typical of the genus.

Breeding-plumage feathers show deep brick-red to chestnut coloring across the underparts and sides of the neck, more vivid and extensive in females, contrasting with a dark crown and a pale patch on the face around the bill base. The back feathers are dark, streaked with buff or golden lines similar to Red-necked Phalarope. The bill is noticeably thicker and shorter than in the other two phalaropes, often with a yellowish base, a useful distinguishing feature even on isolated feathers with attached bill fragments. Nonbreeding feathers are pale, plain gray above and white below, similar to Red-necked Phalarope in winter, but the overall stockier build and thicker bill help separate the species.

As in other phalaropes, breeding females are more richly colored than males, showing deeper, more uniform red underparts, while males are duller and mottled. Juveniles show dark blackish-brown upperparts with buff streaking, molting into paler gray-and-white nonbreeding plumage by early winter. A complete flight feather molt occurs after breeding, largely at sea, and this species is known to undergo a near-simultaneous wing molt that can leave birds flightless or with reduced flight capability for a period.

Breeds on wet tundra, coastal marshes, and pond edges across the high Arctic of North America, Greenland, and Eurasia. It winters almost entirely on the open ocean, particularly over areas of high productivity such as upwelling zones off the coasts of South America, West Africa, and other tropical and subtropical waters, rarely coming to land except to breed or when storm-driven.

Red Phalaropes forage at sea by picking small invertebrates and zooplankton from the surface, often spinning to stir up prey, and can also feed alongside whales or in tide-rip lines where prey concentrates. On the tundra, they nest in a shallow ground scrape, with males undertaking the bulk of incubation and chick care while females may depart early. Vocalizations include a short, sharp call note similar to other phalaropes. Conservation status is IUCN Least Concern, though monitoring is complicated by its highly pelagic, remote lifestyle.