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Location Antigua and Barbuda, Antigua
Central coordinates 61o 45.73' West  17o 3.71' North
IBA criteria A1, A2, A4i, B4i
Area 117 ha
Year of IBA assessment 2007

Site description Potworks Dam IBA is in south-east Antigua, c.2 km north of the village of Bethesda and Bethesda Dam IBA (AG012). The reservoir dam was under construction in 1969 when the area flooded as a result of exceptionally heavy rains. The dam site filled with water before preparation of the site was finished, but is considered a municipal reservoir and is an important source of water for domestic and agricultural use. Due to the very shallow sides to the reservoir and frequent droughts, the shoreline fluctuates greatly over time, reducing opportunities for the establishment of aquatic vegetation. Land surrounding most of the reservoir is former sugar cane estate land that is now farmed or grazed (primarily by free-roaming cattle).

Key Biodiversity The planted woodland and shrublands around parts of this IBA support populations of four (of the 11) Lesser Antilles EBA restricted-range birds that occur in Antigua. However, Potworks Dam is most notable for its waterbirds and numerous Neotropical migratory shorebirds. Over 100 Ruddy Duck Oxyura jamaicensis and 50 Pied-billed Grebe Podilymbus podiceps can be found, but the numbers of Laughing Gull Larus atricilla are globally significant, and Brown Pelican Pelecanus occidentalis are regionally so.

Non-bird biodiversity: Nothing recorded.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
West Indian Whistling-duck Dendrocygna arborea resident  2008  30 individuals  poor  A1  Vulnerable 
Pelecanus occidentalis resident  2007  50 individuals  poor  B4i  Not Recognised 
Laughing Gull Larus atricilla resident  2007  300 individuals  poor  A4i  Least Concern 
Purple-throated Carib Eulampis jugularis resident  2007  unknown  A2  Least Concern 
Green-throated Carib Eulampis holosericeus resident  2007  unknown  A2  Least Concern 
Antillean Crested Hummingbird Orthorhyncus cristatus resident  2007  unknown  A2  Least Concern 
Caribbean Elaenia Elaenia martinica resident  2007  10 individuals  poor  A2  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Potworks Resevoir Wildlife Reserve 0 protected area contained by site 0  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland)   major

Land use

Land-use Extent (% of site)
water management major
agriculture minor

Further web sources of information 

Site profile from Important Bird Areas in the Caribbean: key sites for conservation (BirdLife International 2008)

References Bacon, PR., (1991);Bunce, L., (1993);Caribbean Conservation Association. (1991);Lindsay, k. and Horwith, B. (1997);MacPherson, J. (1973);Martin-Kaye, P., (1969);Martin-Kaye, P., (1959);Pregill, GKD et al.(1994);Raffaele, H., et al. (1998); Spencer, W (1981)

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Potworks Dam. Downloaded from on 27/10/2016

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