|Central coordinates||1o 34.00' West 49o 0.00' North|
|IBA criteria||B1i, C3|
|Year of IBA assessment||2000|
Ornithological information This is an important site for wintering seabirds and waders.
Site description An area of open sea and an estuary with mudflats, saltmarshes and sandy beaches. Agriculture and cattle-raising are the main human activities.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Brent Goose Branta bernicla||winter||1991||250-750 individuals||-||B1i, C3||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Chausey - FR2500079||Habitats Directive||82,943||protected area overlaps with site||947|
|Chausey - FR2510037||Birds Directive||82,426||protected area overlaps with site||946|
|Havre de la Sienne - FR2512003||Birds Directive||2,167||protected area overlaps with site||1,917|
|LITTORAL OUEST DU COTENTIN DE BREHAL A PIROU - FR2500080||Habitats Directive||3,336||protected area overlaps with site||1,936|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Wetlands (inland)||Tidal rivers and enclosed tidal waters||-|
|Coastline||Mud flats & sand flats; Salt marshes; Sand dunes & beaches||-|
|Land-use||Extent (% of site)|
Management considerations Disturbance is caused by recreational activities, particularly boating.
Protection status National None International None
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Havre de la Sienne. Downloaded from http://www.birdlife.org on 21/05/2013
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