The map above shows London's hedgehog distribution. Each borough is distorted by the relative size of its population of hedgehogs.

It also has these tips to help London hedgehogs:

Make a small hole in your garden fence (assuming you own a home with a yard) so that they can easily fit through. Improve this map by sharing your sightings with GiGL. Learn more about the plan to create the Greater London National Park.

The map was created by Ben Hennig for Greater London National Park, essentially a plan to turn London into a National Park. Their website states:

The Greater London National Park Uniquely combining a biodiverse landscape with nature reserves, parks and gardens, the Greater London National Park* covers an area of over 1,500 km2 and is home to more than 8 million people. Recognised as one of the world's most important urban habitats, green spaces and water occupy over 60% of London's land. Over 1,300 Sites of Importance

for Nature Conservation cover 19% of the National Park and are home to more than 1,500 species of flowering plants and 300 species of bird. With over 300 languages spoken, 170 museums, four UNESCO World Heritage Sites and one of Britain's National Trails the Greater London National Park* is open for you to explore.

All information found via Mapping London.