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Porzana porzana
Often confused for the similar wetland inhabitant the water rail, spotted crakes are rare visitors to the UK, and are notoriously hard to spot as they prefer to remain hidden within densely vegetated marshes and sedge beds.
Spotted Crake
Spotted Crake chick
Spotted Crake looking for food
Spotted Crake with an insect in its beak
Scientific name:
Porzana porzana
Family:
Rails, crakes and cootsConservation status:
Amber
Length:
22cm to 24cm
Wingspan:
37cm to 42cm
Weight:
70g to 110g
Spotted crakes are smaller and shorter than water rails, but otherwise do have similarities in their heavily speckled, cryptic plumage. Males have a blue-grey face and an olive-brown breast, both dotted with lighter markings. Their backs and wings are mid-brown, streaked with darker tones and feature lighter speckling at the back of the neck.
The spotted crake’s yellow-brown bill is short and straight, and has a reddish-orange spot near the base. Their legs are greenish, and they have long toes.
Outside of the breeding season, males’ faces become less grey and more spotted, and their bellies and underparts develop more speckling.
Males and females are alike but some subtle distances make it possible to tell the sexes apart.
Female spotted crakes are more heavily spotted on their face and underparts and less grey all year round.
Juvenile spotted crakes have the same overall speckled plumage, but more white spotting is visible on the head, and a paler eyebrow stripe.
Spotted Crake foraging in muddy water
Juvenile Spotted Crake
Spotted crakes are only around the same size as blackbirds, although the crake has much longer legs. Males and females are the same size and weight.
Spotted Crake strutting through the muddy wetland
As a naturally elusive species, spotted crakes are more commonly heard than seen and knowing their calls helps with a positive ID.
When seeking a mate, male spotted crakes make a repetitive sharp ‘hwick’ whistle, repeated from dusk through the night. Females respond with a softer note. Once paired, males become silent. A warning cry of ‘tschick’ is heard when threats are sensed.
Profile of a Spotted Crake
Spotted crakes forage for aquatic invertebrates and their prey by probing mud or shallow water using their bills. They also use sight to pick up prey. Some plant matter is also eaten, such as algae, aquatic grasses and their roots and seeds.
Young spotted crakes quickly master the art of foraging for themselves and feed on soft invertebrates, including coastal worms, earthworms and aquatic insects and their larvae.
Spotted Crake parent foraging with its chick
Spotted crakes are found at freshwater wetlands, particularly those with shallow waters and surrounded by dense reeds and other aquatic vegetation.
Flooded meadows offer a suitable breeding habitat for spotted cranes, while in the non-breeding season they may become more widespread in brackish marshes.
The breeding range of spotted crakes extends from isolated parts of the British Isles and Spain in the east, across southern Scandinavia in the extreme north, to the Mediterranean coast and Balkan states in the south, and eastwards into Russia, Iran, the Arabian peninsula into north-western China, Mongolia and Siberia.
Spotted crakes spend winters from the Mediterranean coasts of southern Europe and North Africa, across the Middle East, from Sudan southwards to north-eastern South Africa, reaching Namibia in the east.
The species also regularly winters in India and Pakistan, as well as sporadically along the south-western Caspian Sea coastline.
Spotted Crake in amongst the reeds
Countries with the highest winter concentrations of spotted crakes include Egypt, Senegal and Burundi. Western European breeding numbers are in decline, with but further east strongholds for the species are found in Azerbaijan.
In the UK, spotted crakes are a considerably rare breeding bird, with less than 30 pairs per year reported to breed in England and Wales. Sightings of spotted crakes during migratory passage are more likely, with from 60 to 117 individuals reported in most years.
Outside of the UK, spotted crakes are not considered especially rare, although their distribution and nature makes it relatively hard to accurately estimate their population. The European population is thought to be anywhere between 50,000 and 180,000 pairs.
Spotted cranes are not widespread throughout the UK and their presence is limited to small isolated patches of eastern and south-west England and in western and central Scotland.
Breeding has regularly been reported at the Lower Derwent Valley nature reserve in Yorkshire, but due to their secretive nature, sightings can never be guaranteed.
Spotted Crake stretching its wing
Breeding occurs for the first time at one year. Little data is available from ringing or population studies, but it is believed that their average life expectancy is around 7 years.
Spotted crakes choose waterside locations that are concealed by aquatic vegetation in order to camouflage their nest sites.
Their watery location is a deterrent to many land mammals, although American mink are a relatively common predator of their nests and young. Wetland birds of prey, such as marsh harriers, are another threat, particularly to eggs and young birds.
Under the Wildlife and Countryside Act, 1981, spotted crakes are protected against being killed, injured or taken into captivity.
Across their wider range, spotted crakes are not considered to be a species of concern. However, due to their limited breeding activity, they have Amber status on the British Birds of Conservation Concern list.
Populations fluctuate due to habitat changes, and from one year to the next there is no guarantee that conditions will be suitable to attract breeding pairs.
Spotted Crake in natural habitat
Nests constructed by spotted crakes are built in dense reeds and other waterside vegetation next to or above standing water or on a tussock that is raised above the water's surface. Nests are made using plant matter, leaves, stems and rushes, and pulled into a bulky cup shape.
In Europe, spotted crakes nest from April to July, while those in Russia and Central Asia nest between May and July. Pairs will typically raise two broods together in a season.
Between 6 and 14 creamy buff eggs are laid, heavily covered with brown blotches. Eggs measure 34 mm by 24 mm (1.3 in by 0.9 in) and are incubated for between 18 and 24 days by both parents in turn.
Spotted crake pairs are formed on breeding grounds after spring migration. Pairs remain together for the duration of the breeding season but then separate ahead of the autumn migration.
Most spotted crakes pair up with a new mate each year, although it is not unheard of for pairs to reunite after spending the winter apart.
Spotted Crake adult feeding chick
As well as being territorial during the breeding season and actively defending their nest and mates against intruders, spotted crakes are also defensive of their feeding grounds and are not tolerant of other birds nearby.
They are usually seen on their own, in pairs, or in small family groups. During migration, larger flocks form and they become temporarily more sociable.
Spotted Crake at edge of water
Spotted cranes are a fully migratory species, moving between European and Central Asian spring breeding grounds and wintering grounds, located in Africa, southern Europe, the Middle East and southern Asia.
Spotted crakes that breed in Europe tend to move south and south-west in autumn, with some spending winters in North Africa and southern Europe and others travelling further afield, to West, East and South Africa. Those that raise their young further east, across Central Asia are thought to head to wintering grounds in India and Pakistan.
Occasionally spotted crakes may be spotted in winter in the UK, although any sightings are rare and sporadic.
The species does breed in England and Wales on a limited basis, although numbers have declined dramatically since the 1990s. Most western European breeding pairs migrate south or southwestwards once they have raised their young.
Spotted Crake standing on rocks in natural habitat
Undertaking lengthy migrations twice a year, spotted crakes are proficient at flying and cover vast distances between their breeding grounds and wintering territories.
Spotted crakes are also accomplished swimmers and are also commonly seen on land, walking close to the ground, while busily flicking their tails.
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