Rallidae

Water Rail

Rallus aquaticus

Water Rail (Rallus aquaticus)
Pl. 1, Water RailPhoto: Hobbyfotowiki
Scientific name
Rallus aquaticus
Family
Rallidae
In Sweden
Partial migrant, breeds here
Size
23 to 26 cm
Swedish Red List 2025
Not red-listed
Global Red List (IUCN)
Least concern (LC)

The Water Rail is a secretive rail of dense reeds in shallow lakes and sea bays. It is mostly noticed by its call, but is sometimes seen running across a gap in the reeds.

How to recognise it

  • Blue-grey face, neck and breast, with a dark brown back streaked black
  • Slightly downcurved reddish bill, reddish eyes and a short tail
  • Black-and-white patterned flanks and a white undertail with a few darker streaks
  • Slightly smaller than a Moorhen, male and female look alike

Call and song

The call heard most often is usually likened to the quickly fading grunting of a disgruntled pig. The main call is a series of grunts, then a loud squeal like a piglet, ending in more grunts. The male's display call is a persistent hammering "kypp kypp kypp".

Recording: Franz Lindinger, CC BY-SA 4.0, via Wikimedia Commons, trimmed and edited

Where and when

The Water Rail breeds in Sweden and is a partial migrant. It lives in reedy lakes and sea bays in Götaland, Svealand and along the Norrland coast up to Västerbotten. Most move south and are in their wintering areas in September to November, though some winter in southern Sweden. The breeding season runs from April to August. It is reported all year round and from all 21 counties.

When is it seen in Sweden?

When is it seen in Sweden? Water Rail, January J Water Rail, February F Water Rail, March M Water Rail, April A Water Rail, May M Water Rail, June J Water Rail, July J Water Rail, August A Water Rail, September S Water Rail, October O Water Rail, November N Water Rail, December D
Share of all bird reports per month in Artportalen, 2016 to 2025.

Where is it reported?

Where is it reported? Stockholm: large share Uppsala: large share Södermanland: large share Gotland: large share Värmland: large share Örebro: large share Östergötland: medium share Jönköping: medium share Kronoberg: medium share Kalmar: medium share Skåne: medium share Halland: medium share Västra Götaland: medium share Västmanland: medium share Dalarna: medium share Gävleborg: medium share Västerbotten: small share Norrbotten: small share Blekinge: small share Västernorrland: small share Jämtland: small share
  • No reports
  • Small share
  • Medium share
  • Large share
Share of all bird reports per county in Artportalen, 2016 to 2025.

Reported all year round. Reported from all 21 counties.

Food and behaviour

The Water Rail eats small fish, crustaceans, molluscs, insects and their larvae. In autumn and winter it eats more plant food: buds, shoots and seeds of water plants, berries and fruit. It flies short distances low over the reeds with its long legs dangling. Surprised in the open, it can freeze and stand completely still. In cold weather it may be forced into ditches, rubbish tips, gardens or onto ice.

Water Rail, another photo
Pl. 2Photo: keith gallie

Easily confused with

  • Rallus indicus

    Rallus indicus has a broad brown eye stripe, more white on the throat and a clearly darker brown crown than the Water Rail.

More in the Rallidae family

Photo: Hobbyfotowiki, CC0, via Wikimedia Commons, resized

Photo: keith gallie, CC BY 2.0, via Wikimedia Commons, resized

The text was written with AI from facts in Wikipedia and may be shared under CC BY-SA 4.0. Sources: Swedish article, English article, German article

Report data: Artportalen (SLU Swedish Species Information Centre) via GBIF.org, 2016 to 2025. Red list: The Swedish Red List 2025, SLU Swedish Species Information Centre via GBIF.org.

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