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City Nature Challenge 2020

April 24, 2020 - May 3, 2020

April 24-27: Taking pictures of wild plants and animals.

April 28- May 3: Identifying what was found.

What is the City Nature Challenge?

Invented by citizen science staff at the Natural History Museum of Los Angeles County (Lila Higgins) and California Academy of Sciences (Alison Young). The City Nature Challenge is an international effort for people to find and document plants and wildlife in cities across the globe. It’s a bioblitz-style competition where cities are in a contest against each other to see who can make the most observations of nature, who can find the most species, and who can engage the most people.

In light of the COVID-19 pandemic, this year’s City Nature Challenge is no longer a competition. We want to embrace the collaborative aspect of the CNC this year and the healing power of nature to allow people to document their local biodiversity in whatever way they can.

Why participate in the City Nature Challenge?

There is nature all around us, even in our cities! Knowing what species are in our city and where they are helps us study and protect them, but the ONLY way to do that is by all of us – scientists, land managers, and the community – working together to find and document the nature in our area. By participating in the City Nature Challenge, not only do you learn more about your local nature, but you can also make your city a better place – for you and other species!

Find Wildlife

It can be any plant, animal, or any other evidence of life found in your city.

Take a Picture

Take a picture of what you find. Be sure to note the location of the critter or plant.


Share your observations through iNaturalist or your city’s chosen platform.

Create your own iNaturalist account

  • Visit iNaturalist.org
  • Download the app from the AppStore or Google Play
  • Sign In
  • Start sharing your observations
  • Get feedback from actual scientists, experts, and other naturalists



April 24, 2020
May 3, 2020