Welcome to the Ontario Breeding Bird Atlas

This data entry section of the Ontario Breeding Bird Atlas web site is part of the NatureCounts platform offered by Birds Canada. Free registration is required to access some of the functionalities of this site.
You are currently not logged into the site with a NatureCounts login.
- To sign in as an existing participant, please click here
- If you have a NatureCounts login, and wish to register to the project, please click here.
- If you do not already have a NatureCounts login, you can create one here.

Ontario Breeding Bird Atlas
- Return to the Ontario Atlas main site
- Coming Soon! Instructions and forms for atlas participants
- Breeding Evidence Code definitions
- Register for the Atlas

Submit or modify your observations
- Start a new checklist
- View your checklists
- Download our NatureCounts app:

Explore the Atlas data
- Atlas maps: explore data from the 1st, 2nd and 3rd atlases
- Data summaries
- Square resources: PDF maps, Google Map files, square summary sheets
- Download raw data
