What is City Nature Challenge


City Nature Challenge is an epic, global citizen science project to collect information about our local wildlife. In 2021 UK cities are collaborating with 400+ cities across the world to find and record as much wildlife as possible to help track how nature is bouncing back this spring!


Discover wildlife on your doorstep throughout the whole of 2021. You can also join the big international Challenge weekend on April 30 – May 3 when all 400+ cities will be active at once!


Taking part is easy! Simply download the iNaturalist app to your smartphone or tablet and use it to upload photos of any wildlife you see from your windows, gardens and during your daily outdoor exercise.

You don’t have to be an expert, as the app will give you some handy suggestions of what it thinks you’ve seen, and you can join the iNaturalist online community to learn more about the wildlife around you. Best of all, the records you submit will help inform local and national conservation work!


City regions across the whole UK are taking part in the challenge this year:

However, you don’t need to be living within one of them to add wildlife records to the map. We’re excited to see the whole of the country take part in the challenge and see records from all four corners.

However, if you live in one of these ten cities you’ll be able to see how your area is doing in comparison to other areas across the world.

International City Nature Challenge

City Nature Challenge is part of a global citizen science project. Started in 2016 between just two organisations the Natural History Museum of Los Angeles County and California Academy of Sciences, and growing across the whole US in 2017, since 2018 cities from all four continents have taken part. Last year, in 2020, over 822,000 wildlife records were submitted across the globe over four days!

This year will see over 400 cities across the world taking part – you can keep up to date with the global map by clicking here