Woman using binoculars to observe nature

2020 City Nature Challenge

This year marks the 5th anniversary of the City Nature Challenge, an international effort to document nature in cities. From April 24 to 27, 2020, people in over 200 cities around the world will use cameras and smartphones to share observations of wild plants and animals. Each observation contributes to an open database of urban nature that will be used by scientists and naturalists all over the world. 

Share your observations of wild plants & animals to help L.A. County win!

How to Participate

Download the iNaturalist app from the App Store or Google Play.

Step 1: Find wildlife - Anywhere in L.A. County

Step 2: Take photos of WILD plants & animals.

Step 3: Share Your observations in the iNaturalist App. If they’re not wild, be sure to mark them as captive/cultivated!

Step 4: Help identify what everyone found from April 28 to May 3. 

iNaturalist How To Videos


Adding an Observation on a Mobile Device

Adding an Observation via the Web

How to Take Identifiable Photos

City Nature Challenge is brought to you by the Natural History Museum of Los Angeles County and California Academy of Sciences. 

View the 2019 City Nature Challenge results.