The spotted crake (''Porzana porzana'') is a small waterbird of the family
Rallidae
The rails, or Rallidae, are a large cosmopolitan family of small- to medium-sized, ground-living birds. The family exhibits considerable diversity and includes the crakes, coots, and gallinules. Many species are associated with wetlands, altho ...
. The scientific name is derived from
Venetian
Venetian often means from or related to:
* Venice, a city in Italy
* Veneto, a region of Italy
* Republic of Venice (697–1797), a historical nation in that area
Venetian and the like may also refer to:
* Venetian language, a Romance language s ...
terms for small rails.
The spotted crake's breeding habitat is
marsh
A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...
es and
sedge
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus '' Carex'' ...
beds across temperate
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located enti ...
into western
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an ...
. They nest in a dry location in marsh vegetation, laying 6–15
egg
An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the a ...
s. This species is
migratory, wintering in
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
and
Pakistan
Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
.
At length, spotted crakes are slightly smaller than
water rail
The water rail (''Rallus aquaticus'') is a bird of the rail family which breeds in well-vegetated wetlands across Europe, Asia and North Africa. Northern and eastern populations are migratory, but this species is a permanent resident in the war ...
s, from which they are readily distinguished by the short straight bill, yellow with a red base. Adults have mainly brown upperparts and blue-grey breast, with dark barring and white spots on the flanks. They have green legs with long toes, and a short tail which is buff underneath.
Immature spotted crakes are similar, but the blue-grey is replaced by brown. The downy chicks are black, as with all
rails.
The only confusion species is the
sora, a rare vagrant from
North America. However, that species lacks the breast spotting and has an unstreaked crown stripe.
These birds probe with their bill in mud or shallow water, also picking up food by sight. They mainly eat
insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs ...
s and aquatic animals.
Spotted crakes are very secretive in the breeding season, and are then mostly heard rather than seen. They are then noisy
bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...
s, with a distinctive repetitive whiplash-like ''hwuit, hwuit'' call. They can be easier to see on migration.
The spotted crake is one of the species to which the ''Agreement on the Conservation of African-Eurasian Migratory Waterbirds'' (
AEWA
The Agreement on the Conservation of African-Eurasian Migratory Waterbirds, or African-Eurasian Waterbird Agreement (AEWA) is an independent international treaty developed under the auspices of the United Nations Environment Programme's Convent ...
) applies. The Western European population has declined in recent decades, and the species is now a very rare breeding bird in
Great Britain
Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...
.
Gallery
Porzana porzana MWNH 0054.JPG, Eggs at Museum Wiesbaden, Germany
File:Porzana_porzana_1_(Marek_Szczepanek).jpg, Immature
Spotted crake (Porzana porzana) (6830876880).jpg, Adult
File:Porzana porzana naumann.jpg, In art
File:Spotted Crake from the Crossley ID Guide Britain and Ireland.jpg, ID composite
References
External links
Spotted crake species text in The Atlas of Southern African Birds
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{{Taxonbar, from=Q194024
spotted crake
Birds of Eurasia
Birds of Russia
Birds of Africa
spotted crake
spotted crake