Red-necked Phalarope

The Red-necked Phalarope is a small, elegant shorebird that spends much of its life swimming on open water rather than walking along shores like most of its relatives — an adaptation reflected in its lobed toes, which act like small paddles.

The species shows a reversal of typical bird sex roles: breeding females are more brightly colored than males, with a dark slate-gray head and neck, white throat, and a bold rufous-orange patch along the sides of the neck, while males show a duller, more muted version of the same pattern. Nonbreeding birds of both sexes are plain gray above and white below.

Outside the breeding season, Red-necked Phalaropes become highly pelagic, spending months far out at sea, often in areas of ocean upwelling rich in plankton.

Key field marks

• Small size with a thin, needle-like black bill
• Females brighter than males: dark gray head, white throat, bold rufous-orange neck patch (breeding plumage)
• Plain gray upperparts, white underparts in nonbreeding plumage
• Lobed toes for swimming (visible at close range)
• Frequent spinning behavior while swimming on water

Similar species

• Red Phalarope: stockier build, thicker bill, brick-red underparts (not just neck patch) in breeding plumage.
• Wilson's Phalarope: larger, longer-necked, longer thin bill, breeds inland rather than on Arctic tundra.

Habitat

Red-necked Phalaropes breed around shallow pools and wetlands on Arctic tundra, but for most of the year they are found far offshore on the open ocean, often associated with productive upwelling zones.

Range and migration

They breed in a circumpolar distribution across the Arctic regions of North America, Europe, and Asia. After breeding, they migrate to spend the winter at sea in tropical and subtropical waters, making them one of the most pelagic of all shorebirds.

Behavior

Red-necked Phalaropes swim frequently, often spinning rapidly in tight circles on the water surface, a behavior that creates a small vortex bringing prey items closer to the surface where they can be picked off.

Voice

Calls include a short, sharp "kit" or "whit," given both on the breeding grounds and in flight.

Feeding

They feed on small aquatic invertebrates and plankton, picking prey delicately from the water surface while swimming, often while spinning to stir food upward.

Nesting and breeding

In a reversal of typical shorebird roles, females compete for mates and, after laying the eggs, leave incubation and chick-rearing entirely to the male, who alone tends the ground nest near tundra pools and cares for the precocial young.