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King Backs Squirrel Birth Control Research
7 Oct
Summary
- King Charles explored oral contraceptive research for grey squirrels.
- Aims to reduce reproduction and protect native red squirrels.
- Novel feeders designed to target grey squirrels specifically.
On May 26, 2026, King Charles visited a cutting-edge research project in North Yorkshire focused on managing Britain's grey squirrel population. The King met scientists at the Animal and Plant Health Agency's York Biotech Campus to learn about the development of an oral contraceptive for grey squirrels.
This innovative research aims to control the invasive species by reducing its reproductive rate, offering a non-lethal alternative to traditional methods. The project seeks to protect native red squirrels, which are threatened by competition for resources and the transmission of squirrelpox from grey squirrels.
Scientists are developing a targeted feeding system to deliver the contraceptive in a hazelnut paste. This system is designed to be species-selective, ensuring only grey squirrels, identified by their weight, can access the bait, thus sparing red squirrels and other wildlife.
The Animal and Plant Health Agency, supported by the UK Squirrel Accord, is leading this effort. While initial trials in rats achieved infertility, further refinement is needed for grey squirrels to ensure the contraceptive's effectiveness and delivery system's reliability.
