Cors Dyfi nature reserve

Cors Dyfi
Boardwalk through wetland habitat surrounding the Cors Dyfi 360° Observatory
Interactive map of Cors Dyfi
LocationPowys, Wales
Coordinates52°34′08″N 3°55′05″W / 52.568774°N 3.918031°W / 52.568774; -3.918031
Governing bodyMontgomeryshire Wildlife Trust
Websitewww.montwt.co.uk/nature-reserves/cors-dyfi

Cors Dyfi is a nature reserve located near to the village of Derwenlas near Machynlleth, in the county of Powys, Wales. Located on land reclaimed from the estuary on the south side of the River Dyfi, the reserve is under the management of the Montgomeryshire Wildlife Trust.[1]

General site character and ecology

The site has open water, swamp, bog, wet woodland, scrub and gorse. Plants present include marsh cinquefoil Comarum palustre, purple loosestrife Lythrum salicaria, lesser spearwort Ranunculus flammula, royal fern Osmunda regalis and bog myrtle Myrica gale.[2]

Wildlife

Ospreys, otters, red kites, peregrines and hen harriers can be found here together with green woodpeckers and nightjars.

Cors Dyfi is home to the Dyfi Osprey Project.[3]

In October 2025, planning permission was granted for a beaver observatory at the nature reserve.[4] In the same month, the Welsh Government announced that beavers would be made a protected native species under Welsh law, following similar moves in England and Scotland.[4]

References

  1. ^ "Cors Dyfi". Montgomery Wildlife Trust. Retrieved 4 December 2019.
  2. ^ "Cors Dyfi – Near Machynlleth, East Wales". First Nature. Retrieved 4 December 2019.
  3. ^ "Dyfi estuary ospreys nest: Police plea to stay away". BBC News Online. 20 June 2011. Retrieved 4 December 2019.
  4. ^ a b Elgan Hearn (31 October 2025). "Beaver viewing centre approved after species given protected status". BBC News Online. Retrieved 7 November 2025.