Harvest mouse
The harvest mouse is tiny - an adult can weigh as little as a 2p piece! It prefers habitats with long grass, but you are most likely to spot its round, woven-grass nests.
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Chwilio
Marsh fritillary
This beautiful butterfly is one of our rarest, now mostly restricted to the western parts of the UK.
Marsh Fritillary Update
The Brecknock nature reserves, Ystradfawr and Cae Lynden near Ystradgynlais, are reknown sites for Marsh Fritillary butterflies. The management of these sites focuses on supporting the habitat…
Mice to meet you!
Mammal expert Stuart Edmunds introduces the four species of mice you can see in the UK.
Water vole
The water vole is under serious threat from habitat loss and predation by the American mink. Found along our waterways, it is similar-looking to the brown rat, but with a blunt nose, small ears…
Water Voles thriving on the River Thaw – a symbol of hope for nature recovery
Following a successful reintroduction to the River Thaw last summer, conservationists have released a further 140 Water Voles to help bring back the UK’s fastest declining mammal to South Wales.…
Water Vole Project
The water vole is under serious threat from habitat loss and predation by the American mink. Found along our waterways, it is similar looking to the brown rat, but with a blunt nose, small ears and furry tail. We're on a mission to bring back this charismatic species back to the rivers, streams, and ditches of Wales!
Seed Harvesting in Brecknock
On a blisteringly hot day Pauline and Steph set out to harvest wildflower seed from two of the Brecknock nature reserves.
What's That Web!? Larval Web Marsh Fritillary Surveying
Join Tara and Sarah to search for the webs of Marsh Fritillary caterpillars. The Marsh Fritillary is a threatened species across Europe. Learn more about their lifecycle and how you can get…
Water voles return to the Thaw for the first time in 20 years
WTSWW in partnership with other conservation organisations in South Wales have been working to bring the UK’s fastest declining mammal back to the River Thaw.
Marsh cinquefoil
Look for the deep magenta, star-shaped flowers of Marsh cinquefoil in marshes, bogs, fens and wetlands in the north, west and east of the UK.
Marsh violet
As its name suggests, the Marsh violet likes damp spots, such as marshes, bogs and wet woods. It is a low-growing plant with kidney-shaped leaves and pale lilac flowers.