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                        The Saint-Barthélémy managed  marshes make flooded lands accessible to ducks and fish. These marshes are  located near Highway 40. 
                          
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                        The area downstream from Île du Moine is the best birdwatching site in southern Quebec.  Ducks Unlimited has set up managed marshes there. 
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                        Lavallière Bay is the largest managed marsh area in Eastern Canada. 
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                        At its entrance, the Maison du Marais houses exhibitions on wetlands  wildlife (fauna). 
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                        A footpath set up with numerous explanatory signs borders the eastern  part of this immense marsh. 
                          
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                        At the end of the path, where the Bay meets the  Yamaska River, the Ministry of Natural Resources and Wildlife has installed a  bypass near the migratory ladder. It allows fish that spawn in the flood plain  to return to the river when the water withdraws. 
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                        These odd installations provide nesting platforms for the Black Duck and  Mallard.  
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                        The  Nicolet Migratory Bird Sanctuary is the property of the Department of National  Defence, and is located in the southern part of Lake Saint-Pierre. Access to  this area is forbidden. In fall, it welcomes many thousands of ducks and Canada  Geese. 
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                        At Baie-du-Febvre, close to the Nicolet Sanctuary, managed ponds make  the observation of many species of ducks possible, including both wading and  diving varieties. 
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