FORGOTTEN HISTORY: Johnny birks - Caught on Camera

New study hopes to boost numbers of one of the UK's rarest mammals in Northumberland

Pine martens were spotted at Kielder Forest in 2018 and now 50 boxes have been erected there for the creatures to breed

Chronicle Live · Mar 25, 2022

New study to boost elusive pine martens in England’s biggest forest

Once thought extinct in England, forestry bosses are putting up boxes for them to inhabit in Kielder Forest, Northumberland.

The Independent UK · Mar 22, 2022