Join residents of 650+ cities across the world in an epic, global mission: to record as much wildlife as possible, between Friday 25 April and Monday 28 April 2025. This year a record number of UK cities are taking part – find your city’s project page to see the records that are being made in your city in real-time on iNaturalist over the 4 day challenge.
Last year a total of 65,682 species were recorded globally, and 83,528 people took part in the challenge. This year is City Nature Challenge’s 10-year anniversary – we’re expecting to see more records than ever before!
Your city region isn’t competing this year?
No worries! If you head to City Nature Challenge’s “Global Project” page on iNaturalist , you can “join” to let them know you’re taking part – this way you can record wildlife from anywhere, and your records will still count towards the global totals. You can record any wildlife you wish – plants, birds, invertebrates, fungi, everything counts!
Top Tips
Want to increase the chances of your iNaturalist records being correctly identified, and used by scientists, recording schemes, planners, Local Environmental Record Centres, and more? Check out these 5 top tips for making records on the iNaturalist app, put together by the Natural History Consortium.
CNC and previous results
You can find out more about City Nature Challenge and the previous results on the NBN Trust website.