Person Examining Bugs

City Nature Challenge 2019: Baltimore

Thank You, Citizen Scientists!

The 2019 City Nature Challenge is complete and, thanks to nature lovers like you, the Baltimore region had a tremendous showing this year! Collectively, 458 of you made 8,499 observations—a 60% increase from just last year!—and identified 1,268 species in and around Baltimore. With your help, 110 species were recorded on iNaturalist for the first time in this region. Once again this year, the most commonly reported plant species was garlic mustard, while the American robin was the most–sighted animal. Read the full recap on our blog.

People Taking a Picture of an Insect Specimen

Amongst regions of similar size (5,000 – 10,000 km²), Baltimore placed 5th in number of species recorded and 4th in number of participants, internationally. Out of 159 participating cities, Baltimore placed 35th in number of observations made and 31st in number of species identified—a very strong showing!

Thank you for your interest in our second Baltimore–area City Nature Challenge! We encourage you to keep observing and documenting urban wildlife. Sign up for our conservation newsletter and check back here next spring to make sure you never miss an opportunity to get nerdy with nature! We're already looking forward to everything you will discover in 2020!

Get Nerdy with Nature

As regional coordinator, the National Aquarium is committed to protecting, enhancing and restoring natural resources for the benefit of all people and wildlife throughout the Baltimore region. Part of that commitment includes knowing which species of wildlife live nearby and what sorts of habitats they need to thrive.

Baltimore City Nature Challenge Map of Area

In Baltimore City…and Beyond!

The National Aquarium is calling on citizen scientists to help explore, identify and document urban wildlife throughout the Baltimore metropolitan area. All observations made in the following counties and uploaded to iNaturalist during the challenge will automatically be counted towards Baltimore's City Nature Challenge totals: Baltimore City, Anne Arundel, Baltimore, Carroll, Harford, Howard and Queen Anne's Counties.

Ready, Set, Upload

City Nature Challenge Step 1

Step 1: Download the iNaturalist App

Download the iNaturalist app and create a login.

City Nature Challenge Step 2

Step 2: Find Wildlife & Photograph What You Find

It can be plant, animal, fungi or any evidence of life such as tracks or shells.

City Nature Challenge Step 3

Step 3: Upload Your Observations

Share your observations by uploading your pictures to iNaturalist. All observations must be uploaded by May 5, 2019.

Track the Challenge (iNaturalist Feed)

You can get involved in the Baltimore City Nature Challenge by joining a participating National Aquarium event, taking part in our partner organizations' events, or simply going for a walk outside! Read on to learn more about upcoming events near you.

Check out the wildlife people are seeing in and around Baltimore today!


The City Nature Challenge Is Organized by:

California Academy of Science and Natural History Museum Los Angeles County Logos

If you have questions or if your organization is interested in partnering with us, please email