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Location Luxembourg, Canton de Clervaux
Central coordinates 5o 54.00' East  50o 5.00' North
IBA criteria C6
Area 3,055 ha
Altitude 408 - 514m
Year of IBA assessment 2009

Letzebuerger natur-A Vulleschutz-Liga

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black Stork Ciconia nigra non-breeding  1993-2009  4-16 individuals  good  C6  Least Concern 
Red Kite Milvus milvus breeding  1997-2009  3-5 breeding pairs  good  C6  Near Threatened 
Circus cyaneus winter  1990-2005  5-10 individuals  medium  C6  Not Recognised 
Boreal Owl Aegolius funereus breeding  1995-1998  1-2 breeding pairs  medium  C6  Least Concern 

IBA Monitoring

2009 high very unfavourable low
Good - based on reliable and complete / representative data

Agriculture and aquaculture annual & perennial non-timber crops - agro-industry farming happening now majority/most of area/population (50-90%) slow but significant deterioration high
Agriculture and aquaculture 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%) very rapid to severe deterioration low

Coturnix coturnix Common Quail 7 7 males only 100 favourable
Ciconia nigra Black Stork 16 16 individuals 100 favourable
Milvus milvus Red Kite 3 4 breeding pairs 100 favourable
Circus cyaneus 6 6 individuals 100 favourable
Saxicola rubetra Whinchat 20 2 - 10 very unfavourable
Motacilla flava Yellow Wagtail 15 2 - 14 very unfavourable
Anthus pratensis Meadow Pipit 19 2 - 11 very unfavourable

Whole area of site (>90%) covered by appropriate conservation designation  No management planning has taken place  Some limited conservation initiatives are in place  low 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Hachiville-Am Dall Humid Zone 188 protected area contained by site 188  
Hachiville-Kouprich Humid Zone Buffer Zone 37 protected area contained by site 37  
Hachiville-Kouprich Wetland Humid Zone 9 protected area contained by site 9  
Troine-Hannerhaassel Humid Zone 76 protected area contained by site 76  
Wincrange - Ramescher Protected Area 655 protected area contained by site 655  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial Arable land; Forestry plantations; Other urban and industrial areas; Ruderal land  26%
Forest Alluvial and very wet forest; Broadleaved deciduous woodland; Mixed woodland  7%
Grassland Humid grasslands; Mesophile grasslands  64%
Wetlands (inland) Rivers and streams; Standing freshwater  1%
Shrubland Heathland; Scrub  2%

Land use

Land-use Extent (% of site)
agriculture 18%
forestry 14%
hunting major
tourism/recreation minor
nature conservation and research minor
rangeland/pastureland 64%

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Valley of the Trëtterbaach. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife