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Guide to North American Birds

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Adult. Photo: Bill Dix/Audubon Photography Awards

Priority Bird

Clapper Rail

Rallus crepitans

A clattering cackle in the salt marsh is often our first clue to the presence of this big rail. The Clapper Rail is usually hidden in dense cover, but sometimes we see it stalking boldly along the muddy edge of the marsh, twitching its short tail as it walks, or swimming across a tidal creek. Historically it was abundant on the Atlantic Coast -- Audubon reported that it was possible to find a hundred nests in a day -- but now much more localized, as coastal marsh has been broken up by development.

Conservation status	Still fairly common, but has seriously declined in parts of the east. Loss of habitat is main threat.
Family	Rails, Gallinules, Coots
Habitat	Salt marshes, rarely brackish; locally in mangroves in southeast. Along most of Atlantic and Gulf Coasts, strictly a bird of salt marsh, sometimes in adjacent brackish marsh. In Florida, also found in shallow mangrove swamps.

Clapper Rail around Connecticut

Audubon Connecticut’s priority bird species are birds of significant conservation need, for which our actions, over time, can lead to measurable improvements in status. Some of these species are listed as vulnerable or near threatened on the International Union for the Conservation of Nature’s Redlist. Others are species of conservation concern on the National Audubon Society’s Watchlist or identified as priorities by Partners in Flight. Many priority species are also listed as endangered, threatened, or of special concern in Connecticut and are included in Connecticut’s Wildlife Action Plan. The breadth of this list reflects the dramatic loss of habitat and the pervasive threats that confront birds and other wildlife.

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Feeding Behavior

Forages by walking in shallow water or on mud, especially on falling tide or at low tide, picking up items from the ground or vegetation, sometimes probing in mud or water.

Eggs

Usually 7-11, sometimes 5-12 or more. Pale yellow to olive-buff, blotched with brown and gray. Incubation is by both sexes, 20-23 days. Young: Downy young may leave nest soon after hatching. Both parents probably feed young. Parents may brood young in a separate nest from the one in which the eggs hatched. Young can fly in about 9-10 weeks.

Young

Downy young may leave nest soon after hatching. Both parents probably feed young. Parents may brood young in a separate nest from the one in which the eggs hatched. Young can fly in about 9-10 weeks.

Diet

Includes crustaceans, insects, fish. Diet varies with locality, and includes a wide variety of small prey. Crustaceans often favored, especially crabs, also crayfish and others. Also eats many aquatic insects, small fish, mollusks, worms, frogs. Eats seeds at times.

Nesting

In courtship displays, male approaches female, points bill down, and swings head from side to side; also stands erect with neck stretched, bill open. Male may feed female. Nest site is in clump of grass or other vegetation in marsh, near the upper reaches of high tide, or on bank near water. Nest (built by both sexes, although male may do more) is well-built cup of grasses and sedges, lined with finer material, often with vegetation woven into a canopy over nest. Often a ramp of plant material leads from ground up to nest.

Illustration © David Allen Sibley.
Learn more about these drawings.

Text © Kenn Kaufman, adapted from
Lives of North American Birds

Migration

Found all year in many parts of range. On Atlantic Coast, some withdrawal in winter from northern end of range, and an influx of northern birds is noted in parts of the southeast in winter.

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Migration

Found all year in many parts of range. On Atlantic Coast, some withdrawal in winter from northern end of range, and an influx of northern birds is noted in parts of the southeast in winter.

All Seasons - Common
All Seasons - Uncommon
Breeding - Common
Breeding - Uncommon
Winter - Common
Winter - Uncommon
Migration - Common
Migration - Uncommon

Songs and Calls

Harsh clattering kek-kek-kek-kek-kek.

Audio © Lang Elliott, Bob McGuire, Kevin Colver, Martyn Stewart and others.
Learn more about this sound collection.

How Climate Change Will Reshape the Range of the Clapper Rail

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 Near You

Climate threats facing the Clapper Rail

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.