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The site was identified as internationally important for bird conservation in 2009 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 List	Season (year/s of estimate)	Size	IBA criteria
Corncrake Crex crex	LC	breeding (2000–2007)	1–5 males	C6
Spotted Crake Porzana porzana	LC	passage (2000–2009)	3–5 birds	C6
White Stork Ciconia ciconia	LC	non-breeding (2005–2009)	1–15 birds	C6
Aquatic Warbler Acrocephalus paludicola	VU	passage (2005)	2 birds	C6

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2013) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high
Human intrusions and disturbance	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low
Residential and commercial development	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low
Transportation and service corridors	likely in short term (<4 years)	few indivi­duals/small area (<10%)	moderate decline (10–30% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Whole area (>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	Substantive conservation measures are being implemented, but these are not compre­hensive and are limited by resources and capacity	high

Year	Protected Area	Designation (management category)	% coverage of IBA
1981	Troine/Hoffelt-Sporbaach	Humid Zone (-)	6
1981	Hoffelt-Kaleburn	Humid Zone (-)	7
1981	Schifflange-Dumontshaff	Humid Zone (-)	12
1981	Foetz-am Bauch	Humid Zone Buffer Zone (-)	1
1988	Brill (Schifflange)	Zones protégées d'intérêt national - Réserve naturelle (Ib)	2
1988	Troine - Vallée de la Troine	Protected Area (-)	12
1994	Roeserbann (Roeser)	Zones protégées d'intérêt national - Réserve naturelle (Ib)	28
1999	Streissel (Bettembourg)	Zones protégées d'intérêt national - Réserve naturelle (Ib)	3
1999	Am Bauch (Mondercange)	Zones protégées d'intérêt national - Réserve naturelle (Ib)	1
2002	Vallée supérieure de l'Alzette	Zones protégées d'intérêt communautaire - Zones Oiseaux ZPS (IV)	79
2007	Am Pudel (Schifflange)	Zones protégées d'intérêt national - Réserve naturelle (Ib)	1

The Local Conservation Group(s) listed below are working to conserve this IBA.

Name	Year formed
Beréngergrupp "Schëfflénger Brill"	1996
LNVL Roeserbann	1989
LNVL Schifflange	0

For more information on BirdLife's work with Local Conservation Groups, please visit Spotlight on local empowerment.

Habitat	% of IBA	Habitat detail
Grassland	85	Humid grasslands; Mesophile grasslands
Artificial/Terrestrial	12	Forestry plantations; Other urban and industrial areas; Arable land; Ruderal land
Forest	2	Alluvial and very wet forest; Broadleaved deciduous woodland
Wetlands (inland)	1	Fens, transition mires and springs; Rivers and streams

Land use	% of IBA
rangeland/pastureland	85
agriculture	5
forestry	2
nature conservation and research	minor (<10)
tourism/recreation	minor (<10)
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Upper Valley of the Alzette (Luxembourg). Downloaded from https://datazone.birdlife.org/site/factsheet/upper-valley-of-the-alzette-iba-luxembourg on 25/12/2024.