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The site was identified as important in 2010 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Black-tailed Godwit Limosa limosa	NT	breeding	2006-2007	20 breeding pairs	C1
Montagu's Harrier Circus pygargus	LC	breeding	2006-2007	25 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2010) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2010) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
White-tailed Sea-eagle Haliaeetus albicilla	3	3	breeding pairs	100	favourable

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Grassland	poor (40-69%)	poor (40-69%)	very unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Natural system modifications	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Biological resource use	likely in short term (within 4 years)	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Climate change and severe weather	likely in short term (within 4 years)	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Residential and commercial development	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Energy production and mining	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Transportation and service corridors	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Pollution	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
No known threats	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Some limited conservation initiatives are in place	medium

Year	Protected Area	Designation	% overlap with IBA
1988	Pradoliny Warszawsko-Berlińskiej	Obszar Chronionego Krajobrazu	85
2001	Pradolina Bzury-Neru	Site of Community Importance (Habitats Directive)	84
2007	Pradolina Warszawsko-Berlińska	Special Protection Area (Birds Directive)	87

Habitat1	Habitat detail	% of IBA
Grassland		82
Wetlands (inland)		11
Forest		5
Artificial/Terrestrial		2

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Bzura River Valley (Poland). Downloaded from https://datazone.birdlife.org/site/factsheet/bzura-river-valley-iba-poland on 23/11/2024.