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Title of the project

Recovery of quarry area


From 1974, the Nuova Demi quarry ended to be a simple gravel quarry thanks to two hunters who decided to take benefit of the presence of water on the site. With a verbal agreement with the owner, they undertaken to restore the wetland. The site is well located because situated between the Brembo and Adda rivers, on a migration axis.

After years of works, the site hosts now 65 ha of wetland of rare beauty and biodiversity and welcomes a huge amount of birds as Ferruginous duck (Aythya nyroca), Tufted duck (Aythya fuligula) and Common pochard (Aythya ferina). Currently, the only species that are hunted are widespread species as the Mallard (Anas platyrhynchos) and 150 to 200 birds are harvested each year which is less than a tenth of the amount that could be easily hunted.

The site has proved very welcoming for diving ducks that spend the winter there. For about 35 years, data were collected on very precise and relational sightings. The work was carried out without any public help and the substantial costs were covered by the Nuova Demi quarry company owner. The rest of the expenses were covered by the hunters themselves.


An oasis of biodiversity known and esteemed by the municipalities involved and by a large part of the population.


Country Italy
Level Local
Site Lago Grande (Nuova DEMI)
Specific site coordinates 45°35'32.8"N 9°32'47.0"E
Municipalities involved Capriate S.G , Brembate
Province(s) Bergamo
Region Lombardia

Starting date


Habitat Types

Wetland, Suburban

Protection status of the areas

No protection status


Species Caracteristics Huntable species, Protected species, Threatened species, Migratory species
Species Type Birds, Mammals (other than large carnivores), Generalist predators
Name(s) of main species Ferruginous duck (Aythya nyroca) Tufted duck (Aythya fuligula) Common pochard (Aythya ferina)

Conservation action(s)

Management of habitats and wildlife (e.g. conservation and restoration activities), Research and data collection (e.g. monitoring, bag data), Communication and education (for different target audiences e.g. hunters, the wider public), Policy work (e.g. positioning of hunting organisations, demonstrating conservation actions)


Leading partners Nessuna
Other partners The owner of the site

Estimation of Human Resources needed

3 people


Biodiversità in area di cava - Guerino Morselli - Novembre 2010 (www.nuovademi.com/osservatorio)