UK068
The Swale


IBA Criteria

Year of most recent IBA criteria assessment: 2007

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Eurasian Wigeon Mareca penelope LC winter 2001-2006 17,877 individuals B1i, C3
Northern Pintail Anas acuta LC winter 2001-2006 831 individuals B1i, C3
Common Teal Anas crecca LC winter 2001-2006 4,709 individuals B1i, C3
Pied Avocet Recurvirostra avosetta LC passage 2001-2006 377 individuals B2, C6
Pied Avocet Recurvirostra avosetta LC winter 2001-2006 582 individuals B2, C6
Pied Avocet Recurvirostra avosetta LC breeding 2002 254 breeding pairs B3, C6
Grey Plover Pluvialis squatarola LC passage 2001-2006 1,803 individuals A4i, B1i, C3
Eurasian Golden Plover Pluvialis apricaria LC winter 2001-2006 10,032 individuals B1i, C2, C6
Common Ringed Plover Charadrius hiaticula LC passage 2001-2006 665 individuals B1i, C3
Eurasian Curlew Numenius arquata NT passage 2001-2006 1,456 individuals B2
Bar-tailed Godwit Limosa lapponica NT passage 2001-2006 335 individuals C6
Bar-tailed Godwit Limosa lapponica NT winter 2001-2006 613 individuals B2, C6
Black-tailed Godwit Limosa limosa NT passage 2001-2006 1,705 individuals B1i, C3
Black-tailed Godwit Limosa limosa NT winter 2001-2006 1,403 individuals B1i, C3
Red Knot Calidris canutus NT winter 2001-2006 3,010 individuals B2
Ruff Calidris pugnax LC winter 2001-2006 69 individuals C6
Dunlin Calidris alpina LC winter 2001-2006 9,617 individuals B2
Common Redshank Tringa totanus LC passage 2001-2006 1,637 individuals B1i, C3
Mediterranean Gull Larus melanocephalus LC breeding 2000 13 breeding pairs C6
A4iii Species group - waterbirds n/a passage 2001-2006 35,006 individuals A4iii, C4
A4iii Species group - waterbirds n/a winter 2001-2006 83,177 individuals A4iii, C4

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2007 medium near favourable medium
Was the whole site covered? Yes State assessed by Population
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) slow but significant deterioration low
Human intrusions and disturbance recreational activities happening now small area/few individuals (<10%) slow but significant deterioration low
Natural system modifications dams & water management/use - small dams likely in short term (within 4 years) some of area/population (10-49%) moderate to rapid deterioration medium
Residential and commercial development housing and urban areas likely in short term (within 4 years) small area/few individuals (<10%) moderate to rapid deterioration low

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Spatula clypeata Northern Shoveler 460 370 individuals 81 near favourable
Mareca penelope Eurasian Wigeon 11600 17877 individuals 100 favourable
Anas acuta Northern Pintail 830 831 individuals 100 favourable
Anas crecca 2960 4709 individuals 100 favourable
Recurvirostra avosetta Pied Avocet 170 582 individuals 100 favourable
Recurvirostra avosetta Pied Avocet 75 254 breeding pairs 100 favourable
Recurvirostra avosetta Pied Avocet 130 377 individuals 100 favourable
Pluvialis squatarola Grey Plover 2020 1609 individuals 80 near favourable
Pluvialis squatarola Grey Plover 1890 1803 individuals 96 favourable
Pluvialis apricaria Eurasian Golden Plover 2640 10032 individuals 100 favourable
Charadrius hiaticula Common Ringed Plover 605 665 individuals 100 favourable
Numenius arquata Eurasian Curlew 1550 1079 individuals 70 near favourable
Numenius arquata Eurasian Curlew 1530 1456 individuals 96 favourable
Limosa lapponica Bar-tailed Godwit 460 613 individuals 100 favourable
Limosa lapponica Bar-tailed Godwit 410 335 individuals 82 near favourable
Limosa limosa Black-tailed Godwit 760 1705 individuals 100 favourable
Limosa limosa Black-tailed Godwit 1520 1403 individuals 93 favourable
Calidris canutus Red Knot 4760 3010 individuals 64 not assessed
Calidris pugnax Ruff 73 69 individuals 95 favourable
Calidris alpina Dunlin 11150 9617 individuals 87 near favourable
Tringa totanus Common Redshank 1540 1471 individuals 96 favourable
Tringa totanus Common Redshank 1250 1637 individuals 100 favourable
Larus melanocephalus Mediterranean Gull 5 13 breeding pairs 100 favourable
Species group - waterbirds A4iii 67440 83177 individuals 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation A management plan exists but it is out of date or not comprehensive Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity medium
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
The Swale Estuary Marine Conservation Zone 5,131 protected area overlaps with site 0
The Swale Ramsar Site, Wetland of International Importance 6,515 protected area overlaps with site 6,486
The Swale Special Protection Area (Birds Directive) 6,510 is identical to site 6,486
The Swale Marine Protected Area (OSPAR) 0 protected area overlaps with site 0
The Swale National Nature Reserve 220 protected area overlaps with site 0
The Swale Site of Special Scientific Interest (UK) 6,508 protected area overlaps with site 6,486
South Bank of The Swale Local Nature Reserve 410 protected area contained by site 0
Seasalter Levels Nature Reserve 205 protected area contained by site 0
Seasalter Levels Local Nature Reserve 71 protected area overlaps with site 0
Outer Thames Estuary Special Protection Area (Birds Directive) 392,452 protected area is adjacent to site 0
Outer Thames Estuary Marine Protected Area (OSPAR) 0 protected area is adjacent to site 0
Oare Marshes Local Nature Reserve 71 protected area overlaps with site 0
Harty Marshes Nature Reserve 33 protected area overlaps with site 0
Great Bells Farm Nature Reserve 196 protected area overlaps with site 0
Elmley National Nature Reserve 1,212 protected area overlaps with site 830

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Marine Intertidal -
Shrubland Scrub -
Grassland Humid grasslands -
Artificial/Terrestrial Arable land -
Marine Neritic -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
hunting -
tourism/recreation -
urban/industrial/transport -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: The Swale. Downloaded from http://www.birdlife.org on 05/12/2022.