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The Munté nature reserve at Cazis is a small highway stopover for water-dependent migratory birds
Set within the intensively used valley landscape along the channelized Hinterrhein, the Munté nature reserve at Cazis is the only semi-natural aquatic habitat in the area. Established near the close of the 20th century and covering just 13 hectares, it consists of several shallow ponds fed by Rhine water, bordered by reeds and willows. Other than birds, the area provides a habitat for species such as beaver, badger, and various small mammals.
During migration periods, it becomes a resting place for bird species that depend on wetland environments. While the Hinterrhein Valley isn’t a primary migration corridor within Switzerland, a number of notable birds that are rare in the Alpine region have been recorded here. Among the approximately 140 species observed, there are (predominantly spring migration) reports of Bécassine des marais, Gorgebleue à miroir, Sarcelle d'été, Canard souchet, Aigrette garzette, and Chevalier culblanc. Both Héron pourpré and Bihoreau gris have been spotted occasionally even into May. In June 2021, a singing Rousserolle turdoïde was confirmed.
Before and after the breeding season, one may also catch sight of the Martin-pêcheur d'Europe. Verified breeding records are limited to a few species, such as Faucon hobereau, Grèbe castagneux and Fuligule morillon, though Bruant des roseaux, Rougequeue à front blanc, and Tarier pâtre have also been sighted during safe times (the latter two in the surrounding fields). In autumn, it’s worth watching out for Busard des roseaux, Rémiz penduline, and Vanneau huppé. In November, the Grande Aigrette, rare in the canton, was documented. Alongside these sightings, several rarities highlight the potential of this still-young reserve: A Crabier chevelu was observed in 2011, followed by a Marouette ponctuée in 2012, a Chevalier gambette in 2019, and a Blongios nain in 2022.
The Munté site is divided into two pond complexes. One to the north (1) and one to the south (2). Both can be viewed from a slightly raised path that runs parallel to the Rhine and the highway. Additionally, the southern section can be observed from a cross-trail coming from Cazis, which also features a viewing platform at the entrance to the reserve (3). The elevated path is accessible via stairs and is not wheelchair-friendly. The nearest public transport stop is Rodels-Realta, reachable via Rhätische Bahn from Chur or Thusis. A small parking area is also located nearby (click P on the map for directions).
For the best experience, it’s recommended to visit the reserve during quieter times on the close-by highway. Early morning is ideal. In the vicinity, two additional sites are well worth a visit: the Heinzenberg to the west, where Tarier des prés breeds in high numbers, and the Rhine dam area near Reichenau/Tamins, known as a nesting ground for Chevalier guignette.
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