Why do leaves change colour in autumn?
The autumnal colours of deciduous trees are one of the big natural spectacles of the year. But why do leaves change colour in autumn, and why do some leaves go red, while others turn yellow?
Chwilio
Speckled wood butterfly - Vicky Nall
Chwilio
Red squirrel
Red squirrels are native to the UK but are a lot rarer than their grey cousins. They live in a few special places across the UK thanks to reintroduction projects.
Our tree nurseries
Since 2020, our tree nurseries at Aberduna, near Mold, and Gwaith Powdwr, near Penrhyndeudraeth have, with help from a small team of staff and volunteers, grown from supplying our own projects to supplying customers.
Take action
Whether you've got 5 minutes or a whole day to spare, there is always something you can do to help protect wildlife in North Wales. Join our network of wildlife champions, volunteers and members and take action today!
My gateway
John has been attending the Recovery Project at Idle Valley Nature Reserve for three years. After being diagnosed with dyslexia and getting bullied for several years at school, he was left with…
Roe deer
The attractive roe deer is native to the UK and widespread across woodland, farmland, grassland and heathland habitats. Look for its distinctive pale rump and short antlers.
How to build a swift box
Swifts like to leave their nests by dropping into the air from the entrance. This is why they often choose to set up camp in the eaves of buildings. If you have a wall that's at least five…
My research
Throughout my internship, I am contributing to marine conservation by assisting with marine mammal research in Cardigan Bay, collecting data on marine mammals from land and boat-based surveys, and…
Rhyfeddodau naturiol fis Chwefror eleni
Er bod tywydd mis Chwefror yn tueddu i’n cadw ni yn realiti oer y gaeaf, mae’r mis hefyd yn cynnig rhai rhyfeddodau o ran bywyd gwyllt sy’n gallu ein cynnal ni nes daw’r gwanwyn. Yn y blog yma,…
30 Diwrnod Gwyllt
Mae her natur fwyaf y DU gyda'r Ymddiriedolaethau Natur yn digwydd drwy gydol mis Mehefin 2026. Cyfle i bawb gysylltu â byd natur.
Cuckoo wrasse
One of the most colourful fish in UK seas, the cuckoo wrasse looks like it belongs in the tropics. Don't be fooled though, it's very much a native species.
Large-leaved lime
A scarce tree of England and Wales, the large-leaved lime is the rarest of our native limes. It is tall and broad, and can be found in forests and parks, where it is frequently planted.