VOLUNTEER SIGN-UP: City Nature Challenge Bioblitz! April 30

City Nature Challenge Bioblitz!

Sign up to join us Sunday, April 30 as we have fun documenting and uploading observations to iNaturalist!

What is the City Nature Challenge, you ask?
It is an annual four-day global “bioblitz” in which cities engage in a friendly competition to see who can rack up the most observations, see the most species and get the most people out recording nature. Despite being a fairly densely populated area, Philadelphia has an impressive diversity of wildlife! So we thought it would be fun to ask our volunteers to help with observations. Let’s do this! See the iNaturalist project page for more info.

We will contact you with details as the date approaches (you will also get some automated reminders). Note: you will be asked to provide your email address and phone number, rest assured this information will not be visible or shared with anyone else! 

Thank you for reading! Please consider supporting our work. Your donation will help keep the Wissahickon green and diverse, and all donations are Tax deductible.


WRV is a member-supported nonprofit dedicated to protecting and improving the natural environment of the Wissahickon.

Please join us in keeping our beloved Wissahickon green and diverse for future generations.

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