Species Profile
Water Rail
Rallus aquaticus
Quick Facts
Conservation
LCLeast ConcernAlso known as: European Water Rail, Western Water Rail
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Appearance
The Water Rail is a medium-sized wetland bird with a slender body, long reddish bill, and short tail. Its upperparts are chestnut-brown with black streaks, while the face and breast are blue-grey. The flanks display striking black and white barring, contrasting with its brown back.
Their bill is long, straight and red, and their legs are flesh-coloured but can appear brighter red in some subspecies. Their white undertail provides a useful way of identifying the species.
Both sexes look similar, although females are smaller and have shorter bills. Juveniles have a duller plumage and darker bill. During winter, the overall colouration may appear slightly darker, but there are no significant seasonal plumage changes.
Identification & Characteristics
Colors
- Primary
- Brown
- Secondary
- White
- Beak
- Red
- Legs
- Red
Attributes
Understanding Attributes
Rated 0–100 based on research and observation. A score of 50 is average across all bird species. These attributes are relative and don't necessarily indicate superiority.
Habitat & Distribution
Water Rails inhabit dense, wet vegetation in freshwater and brackish wetlands, including reed beds, marshes, and the edges of lakes and slow-moving rivers. They are found across much of Europe, western Asia, and northern Africa.
In the UK, they are year-round residents, with numbers boosted by winter migrants from northern Europe. Some southern European populations are sedentary, while northern birds migrate south for winter.
Distribution
Where to See This Bird
Explore regional guides for locations where this bird has been recorded.
United Kingdom
England
Wales
Rutland
Cambridgeshire
Cheshire
Cumbria
Cornwall
Derbyshire
Devon
Dorset
East Riding of Yorkshire
Essex
Gloucestershire
Hampshire
Hertfordshire
Isle of Wight
Kent
London
Merseyside
Lancashire
Lincolnshire
Norfolk
Northamptonshire
Nottinghamshire
Oxfordshire
South Yorkshire
Suffolk
Somerset
Surrey
Staffordshire
Stockton-on-Tees
Warwickshire
Worcestershire
West Sussex
Diet
Water Rails are omnivorous, feeding primarily on small invertebrates such as insects, worms, molluscs, and crustaceans. They also consume small fish, amphibians, plant matter, and sometimes even other birds.
During autumn and winter, they tend to eat more plant matter, including shoots, roots, seeds, berries and fruit.
These birds forage by probing the mud with their long bills or picking prey from vegetation and the water's surface.
Behaviour
Water Rails are secretive birds, often heard more than seen. They move stealthily through dense vegetation, using their laterally compressed bodies to navigate narrow spaces. When threatened, they freeze or quickly dart for cover.
These birds are generally solitary but may form loose flocks during migration.
Calls & Sounds
The Water Rail's most distinctive vocalisation is a loud, explosive 'sharming' call, often likened to a squealing pig. This 'kik-kik-kik' or 'wheeeeze' sound is typically heard at dawn and dusk. This vocalisation is used as an alarm call, as well as to assert a territorial claim.
During the breeding season, males produce a series of grunts and groans to establish territory and attract mates. A sharp whistle can be heard in flight.
Nesting & Breeding
Water Rails form monogamous pairs during the breeding season, typically from April to July in Europe. Males attract females with loud calls and aggressive displays towards rivals.
Nests are well-concealed platforms made of reeds and other vegetation, usually placed in dense cover just above water level. Females lay 6-11 pale, speckled eggs.
Both parents incubate the eggs for about 19-22 days. The chicks are precocial, leaving the nest soon after hatching but remaining dependent on their parents for several weeks.
Conservation
While the Water Rail is listed as Least Concern globally, it faces localised threats from habitat loss due to drainage of wetlands and reed bed destruction. Climate change and water pollution also pose potential risks.
Conservation efforts focus on protecting and restoring wetland habitats across their range.
Birdwatching Tips
- Listen for their distinctive pig-like squealing call, especially at dawn and dusk
- Look for movement in reeds and along the edges of wetlands
- Be patient and quiet; these birds are shy and may take time to emerge
- In the UK, visit wetland reserves like RSPB Minsmere or WWT Slimbridge for better chances of spotting
Did You Know?
- Water Rails can swim and dive to escape danger, despite not having webbed feet.
- They have the ability to compress their bodies laterally to move through dense vegetation.
- In harsh winters, Water Rails have been known to eat small birds and mammals.
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