|Central coordinates||18o 10.00' East 52o 12.00' North|
|IBA criteria||C1, C2, C6|
|Altitude||20 - 60m|
|Year of IBA assessment||2010|
Site description A 120 km stretch of the middle Warta river between Babin village (near Uniejów town) and Pogorzelica village (near Pyzdry town), including the Ko³o valley (Kotlina Kolska) and the Konin basin (Dolina Koniñska). Much of the valley used to flood each spring, but after the construction of Jeziorsko reservoir, spring flooding stopped completely, and habitats changed greatly. As a result of river embankment, the Ko³o valley is now a mosaic of cultivated fields, intensively used meadows, pastures, small stands of woodland and settlements. The main land-use is grazing. The Konin basin, however, has a more natural character. Here the river floods onto wet meadows in April and hollows within meadows are permanently flooded and not cultivated. Low-lying oxbow lakes and their surrounding areas are covered mainly with water-fringe vegetation. There are also riverside beds of osier Salix, scattered plantations, small areas of carr, and sand-dunes covered with pine Pinus forest. Land-use here is mainly non-intensive agriculture, including haymaking in meadows and livestock-grazing on private farms.
Key Biodiversity Up to 35,000 or more waterbirds roost here, mainly wildfowl Anser/Anas with lesser numbers of waders (Charadrii). Breeding species of global conservation concern that do not meet IBA criteria: Aythya nyroca (recently extinct here), Gallinago media (two pairs). A total of 153 species have been recorded breeding.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|White Stork Ciconia ciconia||breeding||2005-2008||210-220 breeding pairs||good||C6||Least Concern|
|Corncrake Crex crex||breeding||2005-2008||130-150 males only||good||C1||Least Concern|
|Spotted Crake Porzana porzana||breeding||2005-2008||25-50 males only||good||C6||Least Concern|
|Black-tailed Godwit Limosa limosa||breeding||2005-2008||75-125 breeding pairs||good||C1||Near Threatened|
|Eurasian Curlew Numenius arquata||breeding||2005-2008||10-14 breeding pairs||good||C1||Near Threatened|
|Whiskered Tern Chlidonias hybrida||breeding||2005-2008||200 breeding pairs||good||C6||Least Concern|
|Black Tern Chlidonias niger||breeding||2005-2008||120-250 breeding pairs||good||C2, C6||Least Concern|
|Middle Spotted Woodpecker Leiopicus medius||breeding||2005-2008||185-220 breeding pairs||good||C6||Least Concern|
|Bluethroat Luscinia svecica||breeding||2005-2008||12-25 breeding pairs||good||C6||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Nadwarcianski Park Krajobrazowy||Landscape Park||13,420||protected area contained by site||13,428|
|Pyzdrski OChK||Protected Landscape Area||19,370||protected area overlaps with site||10,000|
|Uniejowski OChK||Protected Landscape Area||17,686||protected area overlaps with site||5,000|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Alluvial and very wet forest; Mixed woodland; Native coniferous woodland||16%|
|Grassland||Humid grasslands; Mesophile grasslands; Steppes and dry calcareous grassland||38%|
|Wetlands (inland)||Raised bogs; Rivers and streams; Standing freshwater; Water fringe vegetation||2%|
|Artificial - terrestrial||Arable land; Highly improved re-seeded landscapes; Ruderal land||43%|
|Land-use||Extent (% of site)|
Protection status National Partial International None13,428 ha of IBA covered by Landscape Park (Nadwarciañski, 13,428 ha). 10,000 ha of IBA covered by Protected Landscape Area (Pyzdrski, 16,572 ha). 5,000 ha of IBA covered by Protected Landscape Area (Uniejowski, 18,000 ha).
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Middle Warta River Valley. Downloaded from http://www.birdlife.org on 30/05/2016
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