Photo: Glenn Bartley/Vireo

Wilson's Phalarope

Phalaropus tricolor

Phalaropes reverse the usual sex roles in birds: Females are larger and more colorful than males; females take the lead in courtship, and males are left to incubate the eggs and care for the young. Wilson's Phalarope is an odd shorebird that swims and spins on prairie marshes. The other two species of phalaropes nest in the Arctic and winter at sea, but Wilson's is a bird of inland waters, nesting mostly on the northern Great Plains. Huge numbers may gather in fall on some salty lakes in the west, such as Mono Lake and Great Salt Lake, before migrating to South America.
Conservation status Has lost many nesting areas owing to draining of prairie marshes, but still numerous. Protection of staging areas for migrants (such as Mono Lake, California) is important for survival.
Family Sandpipers
Habitat Shallow prairie lakes, fresh marshes, mudflats; in migration, also salt marshes. Nests mostly at shallow fresh-water marshes in open country. In migration, may stop at ponds, coastal marshes, sewage treatment plants, but biggest concentrations are at salty or alkaline lakes. Winters mostly on salty lakes in South America.
Phalaropes reverse the usual sex roles in birds: Females are larger and more colorful than males; females take the lead in courtship, and males are left to incubate the eggs and care for the young. Wilson's Phalarope is an odd shorebird that swims and spins on prairie marshes. The other two species of phalaropes nest in the Arctic and winter at sea, but Wilson's is a bird of inland waters, nesting mostly on the northern Great Plains. Huge numbers may gather in fall on some salty lakes in the west, such as Mono Lake and Great Salt Lake, before migrating to South America.
Photo Gallery
Feeding Behavior

Forages mostly while swimming (but does more walking on shore than other phalaropes). Picks up small items from surface of water, sometimes probes in soft mud. Sometimes stands still and catches flying insects; rarely pursues insects in the air.


Eggs

4, sometimes 3. Buff, blotched with brown. Incubation is by male only, 18-27 days, usually about 23 days. Young: Downy young leave nest within a day after hatching. Male tends young and broods them while they are small, but young find all their own food. Male may try to lure predators away from nest or young by performing broken-wing act. Age of young at first flight and age at independence unknown.


Young

Downy young leave nest within a day after hatching. Male tends young and broods them while they are small, but young find all their own food. Male may try to lure predators away from nest or young by performing broken-wing act. Age of young at first flight and age at independence unknown.

Diet

Mostly aquatic insects and crustaceans. Eats a variety of flies and their larvae, beetles, true bugs, and other insects, mainly aquatic species. Also eats shrimp, copepods, seeds of marsh plants. During autumn and winter on salty lakes, may feed mostly on brine shrimp and brine flies.


Nesting

Females compete for males; one female may mate with more than one male during the season, leaving each of her mates to care for a set of eggs. In courtship, female stretches neck, puffs out neck feathers, makes chugging call. Nest site is usually on ground near water, sometimes a couple of inches above ground in marsh plants. Typical nest is shallow depression with slight lining of grass. Female may take the lead in choosing nest site, but male finishes nest.

Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds

Migration

Migrates in flocks. Winters mostly on salty lakes in highlands of South America, and may travel there in long nonstop flight from staging areas on lakes in western North America. Spring migration in North America is mostly through Great Plains.

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Migration

Migrates in flocks. Winters mostly on salty lakes in highlands of South America, and may travel there in long nonstop flight from staging areas on lakes in western North America. Spring migration in North America is mostly through Great Plains.

  • All Seasons - Common
  • All Seasons - Uncommon
  • Breeding - Common
  • Breeding - Uncommon
  • Winter - Common
  • Winter - Uncommon
  • Migration - Common
  • Migration - Uncommon
Songs and Calls
A soft quoit-quoit-quoit.
Audio © Lang Elliott, Bob McGuire, Kevin Colver, Martyn Stewart and others.
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How Climate Change Will Reshape the Range of the Wilson's Phalarope

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect this bird’s range in the future.

Zoom in to see how this species’s current range will shift, expand, and contract under increased global temperatures.

Climate threats facing the Wilson's Phalarope

Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.

Western Water

Western Water

Audubon is working to identify, protect, and restore priority habitats in the Colorado River basin and around intermountain saline lakes

Read more
Saline Lakes

Saline Lakes

Saline lakes and their associated wetlands throughout Intermountain West create a network of critical habitat that millions of birds depend on for breeding, resting and feeding during migration, and wintering.

Read more

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