The purpose of this page is to provide resources to help birders of all ages and skill level participate in the Third Pennsylvania Bird Atlas.

• PBA3 Presentation webinar by Amber Wiewel (Nov 28, 2023)
• Intro to Philly Atlasing webinar by Tanya Burnett and Manny Dominguez (Feb 20, 2024)

• PA Atlas eBird homepage
• PA Winter Atlas eBird homepage
• Using the PA Atlas Portal (sign in instructions & video)
• Atlas Map tool (ArcGIS)
• Atlas Block system explainer and how to sign up for a block guide
• Understanding Breeding Codes

• PBA3 Volunteer Handbook (v2.3-1)
• PBA3 Winter Atlas Volunteer Handbook
• PBA3 Breeding Guidelines Chart (v1.0)
• eBird Breeding Codes

• Simplified Breeding Code Guidelines for the PA Bird Atlas (This handy page quickly shows which species are eligible to report breeding codes for, for today’s date or any other date you select)
• Breeding Code Tool for the PA Bird Atlas (This handy page quickly shows which codes are OK to use for a species (“Birds” mode) or which species are eligible to report breeding codes for (“Codes” mode) for today’s date or any other date you select)