A new nature reserve, Warren Farm Nature Reserve in Southall, has been declared. The 24.8 hectare meadow was largely empty for 15 years and has since been rewilded into a grassland habitat for wildflowers, birds, butterflies, and bees. The reserve is known for its skylark population, including nearly a quarter of London's entire skylawk breeding population. It is part of a wider project called Brent River Park, a 50-year-old string of green spaces connected by the River Brent. The council has agreed to give Imperial College London and Imperial College Healthcare NHS Trust access to adjoining land to build a cricket and football field.