UK029
Hamford Water


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
Pied Avocet Recurvirostra avosetta LC passage 2001-2006 460 individuals C6
Pied Avocet Recurvirostra avosetta LC winter 2001-2006 482 individuals B2, C6
Eurasian Golden Plover Pluvialis apricaria LC winter 2001-2006 4,530 individuals C6
Common Ringed Plover Charadrius hiaticula LC passage 2001-2006 570 individuals B1i, C3
Eurasian Curlew Numenius arquata NT winter 2001-2006 1,286 individuals B2
Bar-tailed Godwit Limosa lapponica NT winter 2001-2006 763 individuals B2
Ruff Calidris pugnax LC winter 2001-2006 16 individuals C6
Common Redshank Tringa totanus LC winter 2001-2006 1,972 individuals B1i, C3
Little Tern Sternula albifrons LC breeding 2000 113 breeding pairs B2, C6
Little Tern Sternula albifrons LC breeding 2006 50 breeding pairs B2
A4iii Species group - waterbirds n/a winter 2001-2006 44,175 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 high very unfavourable 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
Climate change and severe weather habitat shifting and alteration happening now majority/most of area/population (50-90%) slow but significant deterioration high
Natural system modifications dams & water management/use - dams (size unknown) likely in short term (within 4 years) small area/few individuals (<10%) slow but significant deterioration low
Natural system modifications other ecosystem modifications happening now majority/most of area/population (50-90%) slow but significant deterioration high
Pollution agricultural & forestry effluents - nutrient loads happening now small area/few individuals (<10%) slow but significant deterioration low
Residential and commercial development housing and urban areas likely in short term (within 4 years) small area/few individuals (<10%) slow but significant deterioration low

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Branta bernicla Brent Goose 5400 4615 individuals 86 near favourable
Anas crecca 4020 3630 individuals 91 favourable
Recurvirostra avosetta Pied Avocet 290 482 individuals 100 favourable
Recurvirostra avosetta Pied Avocet 210 460 individuals 100 favourable
Pluvialis squatarola Grey Plover 1970 3126 individuals 100 favourable
Pluvialis squatarola Grey Plover 2490 1101 individuals 45 unfavourable
Pluvialis apricaria Eurasian Golden Plover 3270 4530 individuals 100 favourable
Charadrius hiaticula Common Ringed Plover 640 497 individuals 78 near favourable
Charadrius hiaticula Common Ringed Plover 1180 570 individuals 49 unfavourable
Numenius arquata Eurasian Curlew 660 1286 individuals 100 favourable
Limosa lapponica Bar-tailed Godwit 380 763 individuals 100 favourable
Limosa limosa Black-tailed Godwit 1620 180 individuals 12 very unfavourable
Limosa limosa Black-tailed Godwit 1520 399 individuals 27 very unfavourable
Calidris pugnax Ruff 44 16 individuals 37 very unfavourable
Calidris alpina Dunlin 6000 4619 individuals 77 near favourable
Tringa totanus Common Redshank 1430 1972 individuals 100 favourable
Sternula albifrons Little Tern 113 50 breeding pairs 45 unfavourable
Species group - waterbirds A4iii 38543 44175 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 Some limited conservation initiatives are in place 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 Naze Site of Special Scientific Interest (UK) 25 protected area overlaps with site 0
Hamford Water Site of Special Scientific Interest (UK) 2,188 protected area overlaps with site 2,187
Hamford Water Site of Community Importance (Habitats Directive) 50 protected area contained by site 0
Hamford Water National Nature Reserve 1,427 protected area overlaps with site 1,418
Hamford Water Marine Protected Area (OSPAR) 0 protected area overlaps with site 0
Hamford Water Special Protection Area (Birds Directive) 3,533 protected area contains site 2,187
Hamford Water Ramsar Site, Wetland of International Importance 2,187 protected area overlaps with site 2,187

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Marine Intertidal -
Shrubland Scrub -
Grassland -
Marine Coastal/Supratidal -
Marine Neritic -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -
hunting -
tourism/recreation -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Hamford Water. Downloaded from http://www.birdlife.org on 29/11/2022.