|Central coordinates||14o 20.00' East 53o 50.00' North|
|IBA criteria||C1, C2, C3, C4|
|Altitude||0 - 10m|
|Year of IBA assessment||2010|
Ornithological information A very attractive area for breeding, migrating and wintering birds with very rich food sources available. Breeding species of global conservation concern that do not meet IBA criteria: Crex crex (two pairs). A total of 140 bird species have been recorded breeding.
Site description A delta (growing in the direction of Szczeciñski lagoon) which contains natural and artificial channels of the wina river, with numerous islands. The site also covers the south-west coast of Wolin island and the south-east part of Uznam island adjoining the Piastowski channel. The plant community is very rich. Most of the forest is old-growth (130-150 years), dominated by alder Alnus, mixed birch/oak Betula/Quercus and beech/oak Fagus/Quercus. Open areas are dominated by saltmarsh, rush Scirpus and reedbeds Phragmites. The latter completely cover some islets and almost all shores of the other islands. A very small area is used as arable land.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Smew Mergellus albellus||passage||2002||1,000 individuals||good||C2||Least Concern|
|Common Merganser Mergus merganser||passage||2002||12,000 individuals||good||C3||Least Concern|
|Great Cormorant Phalacrocorax carbo||winter||2004-2009||8,000-14,300 individuals||good||C3||Least Concern|
|Eurasian Curlew Numenius arquata||passage||2000-2009||96 individuals||good||C1||Near Threatened|
|Aquatic Warbler Acrocephalus paludicola||breeding||2009||11-12 males only||good||C1||Vulnerable|
|A4iii Species group - waterbirds||winter||2002-2008||35,000 individuals||good||C4|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Delta Swiny - PLB320002||Birds Directive||11,008||protected area overlaps with site||7,766|
|Ujscie Odry i Zalew Szczecinski - PLH320018||Habitats Directive||52,612||protected area overlaps with site||899|
|Wolin i Uznam - PLH320019||Habitats Directive||30,792||protected area overlaps with site||7,941|
|Wolinski PN||National Park||10,937||protected area overlaps with site||2,000|
|Zalew Szczecinski - PLB320009||Birds Directive||47,195||protected area overlaps with site||899|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Alluvial and very wet forest; Native coniferous woodland||27%|
|Wetlands (inland)||Rivers and streams; Standing freshwater; Water fringe vegetation||-|
|Artificial landscapes (terrestrial)||Ruderal land||6%|
|Land-use||Extent (% of site)|
|nature conservation and research||5%|
Management considerations Threats include the expansion of reedbeds onto saltmarsh following reductions in grazing, and unsuitable forestry practices (clear-cutting). Birds are disturbed by fishermen, tourism and forestry. Eggs of Larus argentatus are sometimes stolen from the colonies (probably by fox farmers), causing disturbance to birds. A part of the IBA (Karsiborska Kêpa, 180 ha) is managed by OTOP (the concept of `private reserve' does not exist in current Polish law). OTOP projects here are: (1) Distribution, numbers and habitat selection of Acrocephalus paludicola (as part of a wider BirdLife International project); (2) action plan for plant community; (3) permanent study of bird numbers and distribution. Projects by the West Pomeranian Ornithological Society include inventory of breeding and migrating birds (June-August 1995).
Protection status National Partial International None2,000 ha of IBA covered by National Park (Woliñski, 10,937 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Delta of the Swina river. Downloaded from http://www.birdlife.org on 20/06/2013
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