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Birds · 14 species guides

Waterbirds & Wildfowl

Waterbirds are birds that depend on freshwater or wetland habitat for feeding, nesting or both, and include wildfowl such as ducks, geese and swans alongside unrelated groups like herons, storks, cranes, kingfishers, flamingos and pelicans.

Bill shape tells you the diet
Flat and broad for dabbling and filtering (ducks); dagger-shaped for spearing fish (herons, kingfishers); serrated for gripping fish (mergansers); downcurved for probing mud (ibises, curlews).
Neck in flight
Herons fly with the neck folded into an S; storks, cranes and spoonbills fly with the neck fully extended. This separates them at any distance.
Feeding method
Dabbling ducks upend without submerging; diving ducks disappear completely. Herons stand motionless and strike; egrets often stir the substrate with a foot.
Legs and feet
Long unwebbed legs for wading; short legs set far back with webbing for swimming. A bird that both swims well and walks awkwardly is built for the water.

Waterbirds are a habitat grouping that cuts straight across taxonomy. Ducks, geese and swans form a genuine evolutionary group — the wildfowl, order Anseriformes — but herons, storks, cranes, kingfishers, flamingos and pelicans belong to entirely separate lineages that arrived at wetland life independently.

What they share is a dependence on one of the most rapidly disappearing habitats on Earth. Wetlands have been drained, built on and diverted at a rate faster than forest loss, and the birds that need them are declining accordingly. That gives this group a conservation profile quite different from garden birds: the issue is rarely the birds themselves, it is that the water is gone.

Key facts

  • Waterbird is a habitat grouping, not a clade. Only ducks, geese and swans form a single evolutionary group (Anseriformes).
  • Herons fly with the neck folded into an S; storks, cranes and spoonbills fly with the neck straight out. This is the most reliable distant identification in the group.
  • Wetlands are disappearing faster than forests, which makes habitat loss rather than direct persecution the dominant threat here.
  • Flamingos get their pink colour from carotenoid pigments in the algae and crustaceans they filter-feed; a flamingo on the wrong diet fades to white.
  • Lead poisoning from spent ammunition and lost fishing weights remains a significant cause of wildfowl death where non-toxic alternatives are not enforced.
  • Many waterbirds are long-distance migrants, so protecting one wetland is not enough — the whole flyway has to hold together.

How to recognise them

The features that separate this group in the field, in the order they are usually most useful.

Bill shape tells you the diet
Flat and broad for dabbling and filtering (ducks); dagger-shaped for spearing fish (herons, kingfishers); serrated for gripping fish (mergansers); downcurved for probing mud (ibises, curlews).
Neck in flight
Herons fly with the neck folded into an S; storks, cranes and spoonbills fly with the neck fully extended. This separates them at any distance.
Feeding method
Dabbling ducks upend without submerging; diving ducks disappear completely. Herons stand motionless and strike; egrets often stir the substrate with a foot.
Legs and feet
Long unwebbed legs for wading; short legs set far back with webbing for swimming. A bird that both swims well and walks awkwardly is built for the water.
Voice
Cranes carry further than almost any bird — a bugling call audible for kilometres. Herons give a harsh croak, usually as they are flushed.

14 waterbirds & wildfowl guides

Search or filter by conservation status. Every guide carries sourced facts, IUCN status and FAQs.

Showing 1-14 of 14 animals

Animal group
A common kingfisher (Alcedo atthis) with brilliant electric-blue upperparts and warm orange underparts, perched on a thin reed above a river and gripping a small silver fish in its long, dagger-shaped black bill.
Least Concern

Birds

C

Common Kingfisher

Alcedo atthis

A jewel of the riverbank that hunts by diving headfirst for fish.

Europe · Asia

Open guide
Great cormorant with black plumage and hooked bill standing on a rocky outcrop with wings outstretched to dry
Least Concern

Birds

C

Cormorant

Phalacrocorax carbo (Linnaeus, 1758) — family Phalacrocoracidae

The black diver that spreads its wings to dry — and eats fish for a living.

Coasts, estuaries, lakes and rivers worldwide · Widespread breeder and winter visitor in Britain

Open guide
A common crane (Grus grus) stands on a green grass meadow with its beak open, calling, showing its grey plumage and the distinctive red crown patch.
Varies by species

Birds

C

Crane

Family Gruidae

Ancient dancers of the sky — cranes have soared across every continent bar two for tens of millions of years

Europe · Asia

Open guide
Eurasian curlew with long downcurved bill and mottled brown plumage standing on damp grassland moor under grey upland sky
Near Threatened globally

Birds

C

Curlew

Numenius arquata (Linnaeus, 1758) — family Scolopacidae

The moorland bugle — and one of Britain's steepest breeding bird declines.

Breeds on moorland, grassland and wet meadows across Europe and Asia · Winters on coasts and estuaries; steeply declining British breeder

Open guide
A male mallard duck with a glossy green head, white neck-ring and chestnut breast swimming on calm water, with a brown female mallard close behind.
Varies; common species Least Concern

Birds

D

Duck

Family Anatidae (e.g. Anas platyrhynchos)

Waterbirds of pond, marsh and coast — and the wild ancestors of the farmyard duck.

Europe · Asia

Open guide
A flamboyance of bright pink flamingos wading and filter-feeding in a shallow saline lake, several with heads dipped upside down in the water.
Varies by species

Birds

F

Flamingo

Phoenicopteridae

The pink filter-feeders of the world's saline lakes

Worldwide

Open guide
A greylag goose standing on a grassy riverbank, showing its stout orange bill, pale grey-brown plumage and webbed feet
Varies; common species Least Concern

Birds

G

Goose

Family Anatidae (Anser and Branta)

Large, social grazing waterfowl famous for V-formation migrations

Europe · Asia

Open guide
A grey heron (Ardea cinerea) perched on a bare lichen-covered branch against a pale blue sky, displaying its ash-grey back, white neck with black streaks, black crown crest, and long orange-red bill
Least Concern

Birds

G

Grey Heron

Ardea cinerea

The patient grey angler of Britain's rivers, canals and garden ponds.

United Kingdom · Europe

Open guide
Sacred ibis with white body, black head, and long curved bill wading in shallow water
Least Concern

Birds

I

Ibis

Threskiornis aethiopicus

The long-billed wading bird of marsh and river

Africa · Asia

Open guide
Northern lapwing with iridescent green-black crest and white underparts displaying over damp farmland pasture
Near Threatened globally

Birds

L

Lapwing

Vanellus vanellus (Linnaeus, 1758) — family Charadriidae

Peewit over the wet meadow — and a farmland collapse still unfolding.

Farmland, wet meadows and moorland across Eurasia · Steeply declining British breeder; winter visitor flocks on lowland fields

Open guide
A large white pelican floating on calm water, its long bill and expandable orange-yellow throat pouch clearly visible as it scoops at the surface.
Varies by species; most Least Concern, some Near Threatened

Birds

P

Pelican

Pelecanus (family Pelecanidae)

The big-billed fishers of the world's waters

The Americas · Europe

Open guide
A shoebill (Balaeniceps rex) standing among green swamp vegetation, its enormous shoe-shaped bill and pale eyes turned toward the camera.
Vulnerable

Birds

S

Shoebill

Balaeniceps rex

The prehistoric swamp sentinel — Africa's shoe-billed giant that waits like a statue for lungfish

Uganda · South Sudan

Open guide
White stork with red bill standing in wetland grass
Family page

Birds

S

Stork

Family Ciconiidae — 19 species in 6 genera

Nineteen species of long-legged soaring birds — most of which have no voice at all.

Europe, Africa, Asia, the Americas and Australasia · Wetlands, floodplains, grassland and, increasingly, farmland and landfill

Open guide
An adult mute swan gliding on calm water with its neck curved into an elegant S-shape, wings slightly arched and orange-and-black bill held downward.
Most species Least Concern

Birds

S

Swan

Cygnus

The largest of the waterfowl, famed for grace, devotion and lifelong pair bonds.

Europe · Asia

Open guide

Conservation: what this group faces

Wetlands are being lost faster than any other major habitat type, and waterbirds go with them. Drainage for agriculture, water abstraction, pollution and coastal development are the primary drivers. Because many waterbirds migrate long distances, protection has to be coordinated along an entire flyway — a bird that breeds in a protected reserve and refuels at an unprotected estuary is not protected. Lead poisoning from spent ammunition and lost fishing tackle remains a substantial and entirely preventable cause of death.

Fund bird protection Current appeals

Waterbirds & wildfowl: frequently asked questions

What is a waterbird?
A bird that depends on freshwater or wetland habitat for feeding, nesting or both. The category includes wildfowl (ducks, geese, swans) plus unrelated groups such as herons, storks, cranes, kingfishers, flamingos, pelicans and rails.
What is the difference between a heron and a stork or crane?
Watch the neck in flight. Herons fold the neck back into a tight S against the body; storks and cranes fly with the neck fully extended. On the ground, herons hunt by standing motionless and striking, while cranes forage while walking.
Why are flamingos pink?
From their diet. Flamingos filter-feed on algae and brine shrimp rich in carotenoid pigments, which are deposited in the feathers. A flamingo fed without those pigments turns pale, and chicks hatch grey and colour up over the following years.
What is the difference between a dabbling duck and a diving duck?
Dabbling ducks — mallards, teal, wigeon — feed at the surface and upend, keeping the tail up and the body afloat. Diving ducks — pochards, tufted ducks, goldeneyes — submerge completely, and have legs set further back, which makes them clumsy on land.
Are waterbirds endangered?
Many are, and wetland loss is the dominant reason. Wetlands are being drained and developed faster than forests are being cleared. Migratory waterbirds are especially exposed because they depend on a chain of stopover sites, and losing any link affects the whole route.
Should I feed bread to ducks?
No. Bread has little nutritional value, and heavy feeding fouls the water, encourages algal blooms and concentrates birds in ways that spread disease. Defrosted peas, sweetcorn, oats and proper waterfowl pellets are all better, in small amounts.

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