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Rouelbeau

Geneva  >  Switzerland

The reeds of Rouelbeau, near the notable Marais de Sionnet, feature Bölömbika and törpegém. The pond is worth a visit especially during migration.

Added* by Peter Wittemann
Most recent update 19 január 2025
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Description

Rouelbeau can be conveniently visited after a trip to the nearby Marais de Sionnet (also described on Birdingplaces). Both sites are results of the Seymaz River renaturation projects carried out in the 2000s. Unlike the Marais de Sionnet, Rouelbeau lacks the floodplains suitable for waders. Among the 175 species recorded here, regular visitors and residents of the reedbeds include Bölömbika and törpegém, along with other notable species.

Once a marsh, Rouelbeau is now a 410-meter-long but only a few dozen meters wide pond surrounded by reeds. It can be observed from one of its narrow ends. While the pond and reedbeds are interesting year-round, the surrounding fields are especially rich in surprises during migration periods.

Focusing on the pond area, winter offers good chances of seeing üstökösréce and Kanalas réce, with Fütyülő réce and Nyílfarkú réce becoming rarer in recent years. Böjti réce can be observed from spring to autumn, and Nagy bukó is present year-round. The pond also attracts some escapees, with records of Mandarinréce, kisasszonyréce, Netta peposaca, and Anas bahamensis.

The reedbeds are dominated by Vízityúk, cserregő nádiposzáta, and Szürke gém. Among them, other species like Jégmadár, Guvat, and Kis vöcsök, which are present year-round, and Nádirigó, which breeds here, may be encountered. During migration, Függőcinege, Foltos nádiposzáta, Bakcsó, and Vörös gém can be seen. törpegém breeds here in spring and summer, while Bölömbika visits only in winter, accompanied by Barna rétihéja and Nagy kócsag.

In the marginal areas, waders such as Kis lile and Füstös cankó were more common in the past. Today, Erdei cankó, Sárszalonka, and Bíbic are occasional guests during migration, with the latter two sometimes staying into the winter months.

From April to May, the surrounding fields and hedges are worth exploring for rozsdás csuk, Kék galamb, Fácán, Fülemüle, Tövisszúró gébics, Déli geze, and Réti pityer. The likelihood of spotting a rarer pipit or breeding bird here may be greater than within Rouelbeau itself. The notable rarities recorded, including üstökösgém, Sarlós partfutó, and Gólyatöcs, date back to the early 2000s.

Details

Access

Rouelbeau can be reached on foot from the Marais de Sionnet (1) in about 15 minutes. During migration, it’s worth checking the surrounding fields and hedges on the way for pipits, buntings, and various warblers. If you want to start at Rouelbeau itself, the nearest bus stops are Carre d’Amont or Meinier, Pralys. For those arriving by car, parking is available at the nearby sports center (Press P on the map for directions). However, the best way to explore the area is by bike.

Unfortunately, the site itself can only be observed from one location (2), with most waterbirds usually gathering at the far end (3). Bringing a scope and a bit of patience is highly recommended!

Terrain and Habitat

Scattered trees and bushes , Grassland , Plain , Reedbeds , Agriculture , Pond

Conditions

Flat

Circular trail

No

Is a telescope useful?

Yes

Good birding season

All year round

Best time to visit

Spring migration , Winter , Autumn migration

Route

Wide path

Difficulty walking trail

Easy

Accessible by

Foot , Bicycle

Birdwatching hide / platform

No

Links

View other birding spots in the area that are published on Birdingplaces

Map

Top 5 birds

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