Dengie nature reserve is a 12 sq. mi. (3,105 hectare) biological and geological Site of Special Scientific Interest between the estuaries of the Blackwater and Crouch near

Bradwell-on-Sea Bradwell-on-Sea is a village and civil parish in Essex, England. The village is on the Dengie peninsula. It is located about north-northeast of Southminster and is east from the county town of Chelmsford. The village is in the District of Mal ...

Essex Essex () is a county in the East of England. One of the home counties, it borders Suffolk and Cambridgeshire to the north, the North Sea to the east, Hertfordshire to the west, Kent across the estuary of the River Thames to the south, and Grea ...

. It is also a National Nature Reserve, a

Special Protection Area A Special Protection Area (SPA) is a designation under the European Union Directive on the Conservation of Wild Birds. Under the Directive, Member States of the European Union (EU) have a duty to safeguard the habitats of migratory birds and certa ...

, a ''

Nature Conservation Review ''A Nature Conservation Review'' is a two-volume work by Derek Ratcliffe, published by Cambridge University Press in 1977. It set out to identify the most important places for nature conservation in Great Britain. It is often known by the initial ...

'' site, a

Geological Conservation Review The Geological Conservation Review (GCR) is produced by the UK's Joint Nature Conservation Committee and is designed to identify those sites of national and international importance needed to show all the key scientific elements of the geological ...

site and a Ramsar site. It is part of the Essex estuaries

Special Area of Conservation A Special Area of Conservation (SAC) is defined in the European Union's Habitats Directive (92/43/EEC), also known as the ''Directive on the Conservation of Natural Habitats and of Wild Fauna and Flora''. They are to protect the 220 habitats and a ...

. An area of 30 acres (12 hectares) is the

Bradwell Shell Bank Bradwell Shell Bank is a nature reserve on the coast of the Dengie Peninsula near Bradwell-on-Sea in Essex. It is managed by the Essex Wildlife Trust. It is part of the Dengie Site of Special Scientific Interest, Special Protection Area and Ram ...

nature reserve, which is managed by the

Essex Wildlife Trust The Essex Wildlife Trust (EWT) is one of 46 wildlife trusts which cover the United Kingdom. The EWT was founded in 1959, and it describes itself as Essex's leading conservation charity, which aims to protect wildlife for the future and the people ...

. It consists of large, remote area of tidal mud-flats and

salt marsh A salt marsh or saltmarsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is domin ...

es at the eastern end of the

Dengie peninsula __NOTOC__ Dengie is a peninsula in Essex, England, that once formed a hundred of the same name (sometimes spelled Dengy). The peninsula is formed by the River Crouch to the south, the Blackwater to the north, both of which are tidal, and the N ...

. The

Chapel of St Peter-on-the-Wall The Chapel of St Peter-on-the-Wall, Bradwell-on-Sea, is a Christian church dating from the years 660-662 and among the oldest largely intact churches in England. It is in regular use by the nearby Othona Community, in addition to Church of Engl ...

overlooks some of the site. It is a wetland of international importance and provides habitats for: *

Bar-tailed godwit The bar-tailed godwit (''Limosa lapponica'') is a large and strongly migratory wader in the family Scolopacidae, which feeds on bristle-worms and shellfish on coastal mudflats and estuaries. It has distinctive red breeding plumage, long legs, ...

(''Limosa lapponica'') *

Hen harrier The hen harrier (''Circus cyaneus'') is a bird of prey. It breeds in Eurasia. The term "hen harrier" refers to its former habit of preying on free-ranging fowl. It migrates to more southerly areas in winter. Eurasian birds move to southern Eur ...

(''Circus cyaneus'') *

Grey plover The grey plover or black-bellied plover (''Pluvialis squatarola'') is a large plover breeding in Arctic regions. It is a long-distance migrant, with a nearly worldwide coastal distribution when not breeding. Taxonomy The grey plover was forma ...

(''Pluvialis squatarola'') *

knot A knot is an intentional complication in cordage which may be practical or decorative, or both. Practical knots are classified by function, including hitches, bends, loop knots, and splices: a ''hitch'' fastens a rope to another object; a ' ...

(''Calidris canutus'') * Black-tailed godwit (''Limosa limosa islandica'') *

Dunlin The dunlin (''Calidris alpina'') is a small wader, formerly sometimes separated with the other "stints" in the genus ''Erolia''. The English name is a dialect form of "dunling", first recorded in 1531–1532. It derives from ''dun'', "dull brown ...

(''Calidris alpina alpina'') *

Lapwing Lapwings (subfamily Vanellinae) are any of various ground-nesting birds (family Charadriidae) akin to plovers and dotterels. They range from in length, and are noted for their slow, irregular wingbeats in flight and a shrill, wailing cry. A gro ...

(''Vanellus vanellus'') *

Oystercatcher The oystercatchers are a group of waders forming the family Haematopodidae, which has a single genus, ''Haematopus''. They are found on coasts worldwide apart from the polar regions and some tropical regions of Africa and South East Asia. The ...

(''Haematopus ostralegus'') *

Dark-bellied brent goose The brant or brent goose (''Branta bernicla'') is a small goose of the genus '' Branta''. There are three subspecies, all of which winter along temperate-zone sea-coasts and breed on the high-Arctic tundra. The Brent oilfield was named after ...

(''Branta bernicla bernicla'') * Cormorant (''Phalacrocorax carbo'') *

Great crested grebe The great crested grebe (''Podiceps cristatus'') is a member of the grebe family of water birds noted for its elaborate mating display. Taxonomy The great crested grebe was formally described by the Swedish naturalist Carl Linnaeus in 1758 in t ...

(''Podiceps cristatus'')

References

{{SSSIs Essex Special Protection Areas in England Sites of Special Scientific Interest in Essex Nature Conservation Review sites Coastal environment of Essex Ramsar sites in England National nature reserves in England Geological Conservation Review sites