Wednesday 27 September 2023

Invertebrates In Reservoir Outflow Into Nant Fawr Stream!

A very kind lecturer at Cardiff University shared this crude list of invertebrates present in the Nant Fawr stream within c 50-100m of reservoir outflow. Enjoy reading about some of the life that thrives here below, and see these photos of more lifeforms in Nant Fawr stream found in our recent family Stream Shuffle! 


Polycelis tenuis



Glossiphonia (complanata?)



Ancylus fuviatilis

Potamopyrgus antipodarum (non-native)

Radix peregra



Gammarus pulex



Leuctra geniculata

Leuctra moselyi

At least 1 other



Seratella ignita

Baetis spp

Ephemera danica

Heptageniidae spp



>1 spp of Elminthidae  

Dytiscidae (probably Platambus maculatus)



Rhyacophila sp (probably dorsalis)

Hydropsyche sp(p?)

Limnephilidae (Potamophylax/Stenophylax?

Glossosoma spp 

Sericostoma personatum

Friday 15 September 2023

People’s Choice Award 2023 - please vote for your favourite Green Flag park or green space!

People across the UK are being encouraged to vote for their favourite Green Flag park or green space. A top ten will then be announced at a virtual award ceremony on 7 November 2023. 

We’d love to see some wonderful Welsh winners, so please start spreading the word and encouraging visitors, volunteers, friends, family and colleagues to vote for you! 

To vote 

1) Find your favourite park/green space on the winners’ map

(Or click here to vote for Nant Fawr Community Woodlands) 

2) Click on the ‘Vote for this site’ button

3) Share the link via email and social media 

 This year voting closes on the 30 September 2023.

Sunday 6 August 2023

Look what we found in the Nant Fawr stream on the Stream Shuffle!

We had a successful Stream Shuffle on Sunday in Rhydypenau Park. Children were able to catch creatures from the Nant Fawr stream and look at them under the microscope. 

Thank you to Cardiff University for their support.

Tuesday 1 August 2023


We are meeting at the bottom of Rhydypenau Park, near Rhydypenau Rd Bridge. 

• Learn about the creatures that live in the Nant Fawr stream.
• Use our new digital microscope! 
• Follow our Explorer Trail 
• Carry out a Scavenger Hunt 
• Prizes to be won! 
• Activities suitable for children between 5-12 years 
• All children must be accompanied by an adult and wellies are recommended. 
• Why not bring a picnic lunch? 
• Membership forms available (£5 per family per year)

Sunday 14 May 2023


Deep Time Walk


This walk will be led by FONF member Paul Graham on 21st May. It is a journey through the Earth's evolutionary history, starting at it’s creation and walking towards the future up to the present day. 


Commentary will be provided at points along the way exploring the Earth's story, discovering how it's surface has evolved and stabilised over time to support life, and considering our human part in it.


Places are limited and will be allocated on a first come, first serve basis. If you would like to join please book a place asap by replying



Date:     Sunday 21st May

Time:     10am 

From:    Heol Esgyn entrance to Nant Fawr Community Woodland

Length: 4.6km


Note:    The route will mainly follow gravel trails but will also involve sections that can become wet and muddy if there has been rain, so please dress suitably for the conditions.

Monday 8 May 2023

 Dawn Chorus Walk

On 7th May the Friends of Nant Fawr in conjunction with the Wildlife Trust of South and West Wales Cardiff Group and Cardiff Naturalists hosted a joint walk from Roath Park and through Nant Fawr to experience the dawn chorus! The 4.30am wake up call was well worth it - amazing to hear! Posted is a small clip of what we heard!

Tuesday 4 April 2023

Endangered & Protected Species in Nant Fawr!


Pipistrelle bats as seen and heard in Nant Fawr! Image credit: wikimedia commons cc

Nant Fawr is home to a large diversity & abundance of legally-protected & endangered species, which you can find listed on this page!

We have 9 birds, 7 fungi, 3 reptiles, 2 mammals & 1 amphibian legally-protected by the Wales Environment Act (2016) Section 7, and 6 more birds legally-protected under Schedule 1 of the Wildlife and Countryside Act 1981. Our bats are protected by lots of laws!

Furthermore, we have 25 endangered bird species listed on the UK Red List for Birds, which you can find at the bottom of this page!

So, here they are! All these ones are legally-protected by Section 7, unless otherwise stated:

Birds (x9):
Yellow wagtail
Common bullfinch
House sparrow
Song thrush
Dunnock (Hedge accentor)
Lesser redpoll
Black-headed gull
Herring Gull

Fungi* (x7):
Fragile Amanita
Agaric Marsh Honey Fungus
Dark Purple Earthstar
Hydnellum concrescens
Fused tooth fungus
Woolly tooth fungus
Ashen Coral

*as observed by local fungi photographer and Spore Print Artist, Tanya-Marie Gillett, in Nant Fawr Woods.

Reptiles (x3):
Grass snakes
Common vipers/adders*

*Protection: Wales Environment Act (2016) Section 7, PLUS Wildlife and Countryside Act 1981 & Priority Species under the UK Post-2010 Biodiversity Framework.

Amphibians (x1):
Common toads

(Also, Smooth newts, which are protected in the UK under the Wildlife and Countryside Act, 1981.)

Mammals (x2):
Pipistrelle bat*
West European hedgehog

*Protection: Wales Environment Act (2016) Section 7, Habitats and Species Regulations 2017,the Wildlife and Countryside Act 1981 (as amended), European Protected Species under Annex IV of the European Habitats Directive. More here and at bottom of this page.

More birds (x6):
All birds in the UK are protected in some form by the Wildlife and Countryside Act, 1981, but some species have additional protection under Schedule 1 of this Act. In NF, we have the following Schedule 1 birds:

Little gull
Mediterranean gull
Black tern

Endangered birds (x25):

Further to the above, we have 25 bird species listed on 'Birds of Conservation Concern 5' (also known as the UK Red List for Birds), which is the UK's list of bird conservation priorities. This is non-legally-binding and is a different list to the legally-protected species above.

So, in NF, we have:

Grey wagtail - amber-listed
Wren - amber
Redwing - amber
Rook - amber
Song thrush - amber
Dunnock - amber
Bullfinch - amber
Tawny owl - amber
Sparrowhawk - amber

Tawny owl - Image credit: wikimedia commons cc

Greenfinch - red-listed

Lesser redpoll - red
Fieldfare - red
Mistle thrush - red
Swift - red
House martin - red
Yellow wagtail - red
Starlings - red
House sparrows - red

Common gull - amber
Lesser black-backed gull - amber
Mediterranean gull - amber
Great black-backed gull - amber
Yellow-legged gull - amber
Black-headed gull - amber
Herring gull - red

More information:
1. More on our bats' protection:

"Bats are legally protected and you must not take any action which could harm the bats" - NRW:

Further: "All bat species are protected by law, including their breeding sites and resting places" - NRW:

2. More on Wales Environment Act (2016) Section 7:
Section 7 of the Environment Wales Act 2016 means Welsh Ministers have a duty to ‘take all reasonable steps to maintain and enhance the living organisms and types of habitat included in any list published under this section’: