UK286
Strangford Lough and islands


IBA Justification

The site was identified as internationally important for bird conservation in 2007 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:
Species Red List Season (year/s of estimate) Size IBA criteria
Whooper Swan Cygnus cygnus LC winter (2001–2006) 208 birds B1i, C2
Brent Goose Branta bernicla LC passage (2001–2006) 17,972 birds A4i, B1i, C3
Brent Goose Branta bernicla LC winter (2001–2006) 11,257 birds A4i, B1i, C3
Common Shelduck Tadorna tadorna LC winter (2001–2006) 4,119 birds A4i, B1i, C3
Eurasian Golden Plover Pluvialis apricaria LC passage (1990–1995) 3,210 birds C6
Eurasian Golden Plover Pluvialis apricaria LC winter (1990–1995) 5,850 birds C6
Eurasian Curlew Numenius arquata NT winter (1990–1995) 1,910 birds B2
Bar-tailed Godwit Limosa lapponica NT passage (1990–1995) 370 birds C6
Bar-tailed Godwit Limosa lapponica NT winter (1990–1995) 770 birds B2, C6
Red Knot Calidris canutus NT winter (1990–1995) 6,500 birds B1i, B2, C3
Common Redshank Tringa totanus LC passage (1990–1995) 3,070 birds A4i, B1i, C3
Common Redshank Tringa totanus LC winter (1990–1995) 2,470 birds B1i, C3
Mediterranean Gull Larus melanocephalus LC breeding (2002) 1 pairs C6
Common Tern Sterna hirundo LC breeding (2000) 554 pairs C6
Common Tern Sterna hirundo LC breeding (2006) 962 pairs C6
Arctic Tern Sterna paradisaea LC breeding (2000) 54 pairs C6
Arctic Tern Sterna paradisaea LC breeding (2006) 663 pairs C6
Sandwich Tern Thalasseus sandvicensis LC breeding (2000) 894 pairs B1i, B2, C2, C6
Sandwich Tern Thalasseus sandvicensis LC breeding (2006) 1,137 pairs A4i, B1i, B2, C2, C6
A4iii Species group - waterbirds n/a winter (1990–1995) 56,793 birds A4iii, C4

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2007 good low high
Whole site assessed? State assessed by Accuracy of information
yes population good

State (condition of the trigger species' populations)
Species Actual vs Reference (units) % remaining Result
Whooper Swan Cygnus cygnus 208 / 23 (birds) 100 good
Brent Goose Branta bernicla 11,257 / 10,700 (birds) 100 good
Common Shelduck Tadorna tadorna 4,119 / 2,080 (birds) 100 good
Common Tern Sterna hirundo 962 / 565 (pairs) 100 good
Arctic Tern Sterna paradisaea 663 / 280 (pairs) 100 good
Sandwich Tern Thalasseus sandvicensis 1,137 / 530 (pairs) 100 good

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Residential and commercial development happe­ning now few indivi­duals/small area (<10%) moderate decline (10–30% over 3 gener­ations) low
Agricultural expansion and intensification happe­ning now few indivi­duals/small area (<10%) moderate decline (10–30% over 3 gener­ations) low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation Planning Action Result
Whole area (>90%) covered by appropriate conservation designation A management plan exists, but it is out of date or not compre­hensive The conservation measures needed for the site are being compre­hensively and effectively implemented high

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
- Strangford Lough (Part 1) Area of Special Scientific Interest (ASSI) (-) 10
- Strangford Lough (Part 2) Area of Special Scientific Interest (ASSI) (-) 5
- Strangford Lough (Part 3) Area of Special Scientific Interest (ASSI) (-) -
1955 Strangford Lough Nature Reserve (V) 16
1955 Mount Stewart Nature Reserve (V) <1
1972 Strangford Lough Area of Outstanding Natural Beauty (V) -
1975 Dorn National Nature Reserve (IV) 5
1977 KILLARD National Nature Reserve (IV) <1
1987 NORTH STRANGFORD LOUGH National Nature Reserve (IV) 7
1987 BALLYQUINTIN POINT National Nature Reserve (IV) <1
1988 STRANGFORD LOUGH PART 1 Area of Special Scientific Interest (NI) (IV) 10
1988 STRANGFORD LOUGH PART 2 Area of Special Scientific Interest (NI) (IV) 3
1989 STRANGFORD LOUGH PART 3 Area of Special Scientific Interest (NI) (IV) 10
1989 Strangford Bay & Sandy Island Nature Reserve (IV) <1
1995 KILLARD Area of Special Scientific Interest (NI) (IV) <1
1995 BALLYQUINTIN POINT Area of Special Scientific Interest (NI) (IV) <1
1995 Strangford Lough Marine Nature Reserve (IV) 100
1998 QUOILE Area of Special Scientific Interest (NI) (IV) 1
2005 Strangford Lough Marine Protected Area (OSPAR) (UA) 94
2010 STRANGFORD & LECALE Area of Outstanding Natural Beauty (NI) (V) 100
2011 Strangford Lough Marine Protected Area (OSPAR) (UA) 92

Habitats

Habitat % of IBA Habitat detail
Marine Coastal/Supratidal -
Marine Intertidal -
Marine Neritic -
Wetlands (inland) - Fens, transition mires and springs

Land use

Land use % of IBA
agriculture -
fisheries/aquaculture -
hunting -
nature conservation and research -
tourism/recreation -
urban/industrial/transport -


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Strangford Lough and islands (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/strangford-lough-and-islands-iba-united-kingdom on 23/12/2024.