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Location United Kingdom, South East,South West
Central coordinates 1o 47.97' West  50o 47.21' North
IBA criteria B1i, C3, C6
Area 1,348 ha
Altitude 3 - 25m
Year of IBA assessment 2007

Royal Society for the Protection of Birds

Site description The IBA comprises about 20 km of the Avon valley, the flood-plain of which contains a variety of habitats. The river itself is probably the most diverse chalk river system in the UK, with an aquatic flora that includes important Ranunculus beds, reflecting its chalk and acid qualities. Adjacent hay-meadows also support a rich flora. Meadows, fen and carr attract a wide range of wintering and breeding wetland birds, with heathland species breeding in adjacent areas.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Tundra Swan Cygnus columbianus winter  2001-2006  25 individuals  good  C6  Least Concern 
Gadwall Mareca strepera winter  2001-2006  690 individuals  good  B1i, C3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Avon Valley Birds Directive 1,346 is identical to site 1,346  
Avon Valley Wetlands of International Importance (Ramsar) 1,385 is identical to site 1,348  
Avon Valley (Bickton to Christchurch) Site of Special Scientific Interest (SSSI) 605 protected area contained by site 605  
New Forest National Park 57,100 protected area contains site 1,348  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland; Mixed woodland  -
Grassland Humid grasslands  -
Wetlands (inland) Fens, transition mires and springs; Rivers and streams; Standing freshwater; Water fringe vegetation  -
Artificial - terrestrial Arable land; Highly improved re-seeded landscapes  -

Land use

Land-use Extent (% of site)
agriculture -

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Avon Valley. Downloaded from on 30/09/2014

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