Jason Endfield, born in Liverpool, England, in 1965, is a journalist and environmental campaigner based in Wrexham, United Kingdom. Specializing in environmental issues, biodiversity, wildlife, and nature, Endfield has established himself as a prominent voice in the field of environmental journalism. His journey towards activism was sparked by the inspiration he received from a primary school teacher during his formative years, which instilled in him a deep-seated passion for wildlife conservation and environmental protection.

Endfield's work is characterized by his fierce independence and non-alignment with any political group or organization, allowing him to write about environmental matters with a free-thinking outlook. Witnessing the destruction of the UK countryside and the decline in wildlife, he was compelled to take action. He initiated a petition against the UK government's licensing system that allowed the killing of wild birds, including ravens. His relentless efforts led to the exposure of extensive lethal control licenses and a successful campaign that pressured Natural England to publish annual licensing data and withdraw certain harmful licenses.

In addition to his work on wildlife protection, Endfield is known for his opposition to the industrial-scale development of wind farms in environmentally sensitive areas. His campaigning and reporting are centered around the need to protect wildlife from the effects of human impact on natural habitats, making him a significant figure in the fight for environmental conservation.