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The site was identified as important in 2000 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
Rock Partridge Alectoris graeca	NT	breeding	1996	40-60 breeding pairs	B2
Eurasian Wryneck Jynx torquilla	LC	breeding	1996	20-40 breeding pairs	B2
Yellow-billed Chough Pyrrhocorax graculus	LC	resident	1996	25 breeding pairs	A3
Wallcreeper Tichodroma muraria	LC	resident	1996	present	A3
Common Redstart Phoenicurus phoenicurus	LC	breeding	1996	100 breeding pairs	B2
Rufous-tailed Rock-thrush Monticola saxatilis	LC	breeding	1996	10-25 breeding pairs	B2
Alpine Accentor Prunella collaris	LC	resident	1996	30-50 breeding pairs	A3
White-winged Snowfinch Montifringilla nivalis	LC	resident	1996	present	A3
Citril Finch Carduelis citrinella	LC	breeding	1996	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. 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	some of area/population (10-49%)	slow but significant deterioration	medium
Residential and commercial development	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Human intrusions and disturbance	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Invasive and other problematic species and genes	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Pollution	happening now	whole area/population (>90%)	no or imperceptible deterioration	low
Climate change and severe weather	likely in long term (beyond 4 years)	whole area/population (>90%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Some of site covered (10-49%)	A management plan exists but it is out of date or not comprehensive	Very little or no conservation action taking place	low

Year	Protected Area	Designation	% overlap with IBA
1983	Val Verzasca	Landscapes and Natural Monuments of National Importance	27
1991	Piano sopra Visletto	Bundesinventar der Hoch- und Übergangsmoore von nationaler Bedeutung	-
1992	Maggia	Bundesinventar der Auengebiete von nationaler Bedeutung	3
1992	Saleggio	Bundesinventar der Auengebiete von nationaler Bedeutung	<1
2001	Lanca Saligin	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung	<1
2001	Laghetto Pianca	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung	<1
2001	Lago di Masnee	Bundesinventar der Amphibienlaichgebiete von nationaler Bedeutung	<1
2009	Valle Magia	Smaragd-Gebiete	3
2010	Torbeccio	Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung	<1
2010	Aurigeno	Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung	<1
2010	Brione	Bundesinventar der Trockenwiesen und -weiden von nationaler Bedeutung	<1
2017	Da l'Ovi	Federal Inventory of Dry Grasslands and Pastures of National Importance	<1

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland, Native coniferous woodland, Alluvial and very wet forest, Treeline ecotone	56
Rocky areas (eg. inland cliffs, mountain peaks)	Inland cliffs, Scree & boulders	26
Grassland	Alpine, subalpine and boreal grassland	7
Artificial/Terrestrial	Urban parks and gardens, Other urban and industrial areas	2
Wetlands (inland)	Rivers and streams, Raised bogs	-

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	8
urban/industrial/transport	2
forestry	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Maggia valley (Switzerland). Downloaded from https://datazone.birdlife.org/site/factsheet/maggia-valley-iba-switzerland on 22/11/2024.