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Location United Kingdom, East Anglia
Central coordinates 0o 36.69' West  52o 18.65' North
IBA criteria A4iii, B1i, C3, C4, C6
Area 1,366 ha
Year of IBA assessment 2007

Royal Society for the Protection of Birds

Site description A series of reclaimed gravel pits and surrounding grassland, important for wintering waterbirds.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Gadwall Mareca strepera winter  2001-2006  486 individuals  good  B1i, C3  Least Concern 
Gadwall Mareca strepera non-breeding  1999-2004  773 individuals  good  B1i, C3  Least Concern 
Eurasian Bittern Botaurus stellaris non-breeding  1999-2994  2 individuals  good  C6  Least Concern 
A4iii Species group - waterbirds winter  2001-2006  19,899 individuals  good  A4iii, C4   
A4iii Species group - waterbirds non-breeding  1999-2004  23,821 individuals  good  A4iii   

IBA Monitoring

2007 high favourable low
Good - based on reliable and complete / representative data

Energy production and mining mining and quarrying happening now small area/few individuals (<10%) no or imperceptible deterioration low
Energy production and mining renewable energy happening now small area/few individuals (<10%) moderate to rapid deterioration low
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) moderate to rapid deterioration high

Mareca strepera Gadwall 563 486 individuals 87 not assessed
Species group - waterbirds A4iii 17508 19899 individuals 100 favourable

Whole area of site (>90%) covered by appropriate conservation designation  No management planning has taken place  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  low 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Upper Nene Valley Gravel Pits Site of Special Scientific Interest 1,382 protected area overlaps with site 1,361  


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

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Upper Nene Valley Gravel Pits. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife