This page lists all the bird species reported on eBird during the past week in Philadelphia county that haven’t been reported yet on iNaturalist for the Philadelphia City Nature Challenge. If you can, please upload observations (photo and audio preferred but not mandatory) of these species on iNaturalist so that they can count towards the challenge.

This page will be regularly updated during the challenge. All species recorded during the 2025 challenge are visible in this iNaturalist project.