City Nature Challenge Weekend


Throughout the weekend of April 26 – 29th, New Yorkers can safely get outside to photograph examples of urban wildlife throughout the five boroughs, supported by Macaulay Honors College, and inspired by virtual events.

  • Face to face with nature
  • Get outdoors
  • Free family events


Macaulay Honors College, CUNY is thrilled to be the official New York City host of the City Nature Challenge for the 7th consecutive year. Join us in supporting science education, sustainability, and environmental awareness. Over 370 cities will participate this year!

After observation days have ended, the iNaturalist community will help properly identify and catalog the species in a marathon tech session. Final results will be announced by iNaturalist (and on this page).


Special Thanks

Macaulay Honors College is the NYC organizer of the City Nature Challenge, generously supported by the New York City Council and the office of Council Member Gale Brewer.

In addition, we thank the following partner organizations for participating:

American Museum of Natural History, Billion Oyster Project, Friends of Spuyten Duyvil, Genspace, Green-Wood Cemetery, Greenbelt Conservancy, Lower East Side Ecology Center, Madison Square Park Conservancy, Manhattan Land Trust, New York Botanical Garden, NYC Parks, NYC Pollinator Working Group, NYCH20, Prospect Park Alliance, Stewards of Ewen Park, Stewards of Henry Hudson Park, The Bee Conservancy, The Friends of Governors Island, Torrey Botanical Society, UrbisEco, Washington Square Park EcoProjects.

The City Nature Challenge is globally organized by the California Academy of Sciences and the Natural History Museum of Los Angeles County.

The first step in the City Nature Challenge: download the free app! You’ll use it to record your observations and share them with other citizen scientists.

Learn more

Android App on Google Play


Email or text/call (262) 228-8682.