LU010
Valley of the Woltz


IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Black Stork Ciconia nigra LC breeding 2000-2009 1-2 breeding pairs C6
Hen Harrier Circus cyaneus LC winter 1990-2005 5-10 individuals C6
Red Kite Milvus milvus LC breeding 1997-2009 2-3 breeding pairs C6

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2009 high very unfavourable low
Was the whole site covered? Yes State assessed by Population
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - agro-industry farming happening now majority/most of area/population (50-90%) slow but significant deterioration high
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - agro-industry grazing, ranching or farmin happening now majority/most of area/population (50-90%) slow but significant deterioration high
Natural system modifications other ecosystem modifications happening now small area/few individuals (<10%) no or imperceptible deterioration low

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Grassland Humid grasslands 0 0 very poor (< 40%) very poor (< 40%) very unfavourable
Grassland Mesophile grasslands 0 0 good (> 90%) very poor (< 40%) very unfavourable
Shrubland Heathland 0 0 very poor (< 40%) very poor (< 40%) very unfavourable

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Coturnix coturnix Common Quail 3 3 males 100 favourable
Ciconia nigra Black Stork 1 1 breeding pairs 100 favourable
Milvus milvus Red Kite 2 3 breeding pairs 100 favourable
Saxicola rubetra Whinchat 5 0 - 0 very unfavourable
Anthus pratensis Meadow Pipit 1 1 - 100 favourable
Motacilla flava 6 0 - 0 very unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation No management planning has taken place Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Vallée de la Woltz et affluents de la source à Troisvierges Special Protection Area (Birds Directive) 1,269 protected area overlaps with site 0
Vallée de la Woltz et affluents de la source à Troisvierges Zones protégées d'intérêt communautaire - Zones Oiseaux ZPS 1,269 protected area overlaps with site 0
Troisvierges-Cornelysmillen Humid Zone 283 protected area contained by site 283
Troisvierges - Cornelysmillen Zones protégées d'intérêt communautaire - Zones Habitats ZSC 305 protected area overlaps with site 0
Troisvierges - Cornelysmillen Site of Community Importance (Habitats Directive) 382 protected area overlaps with site 305
Parc naturel de l'Our / Naturpark Our Parc Naturel 42,026 protected area overlaps with site 0
Hautbellain-Rittefenn Humid Zone 196 protected area contained by site 196
Hautbellain-Foschtbaach Humid Zone 148 protected area contained by site 148
Basbellain-Schucklai Divers Nature Reserve 46 protected area contained by site 46

Local conservation groups

The local conservation groups below are working to support conservation at this IBA.

Name Year formed
LNVL Clervaux 0
For more information on BirdLife's work with Local conservation groups please click here.

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Rivers and streams -
Artificial/Terrestrial Arable land, Forestry plantations, Other urban and industrial areas, Ruderal land -
Forest Alluvial and very wet forest, Broadleaved deciduous woodland, Mixed woodland -
Grassland Humid grasslands, Mesophile grasslands -
Shrubland Scrub -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
forestry -
agriculture -
hunting -
tourism/recreation -
rangeland/pastureland -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Valley of the Woltz. Downloaded from http://www.birdlife.org on 05/12/2022.