Ontario Breeding Bird Atlas

Without doubt, the second Ontario Breeding Bird Atlas ranks among the most successful, important, and exciting bird research and conservation projects ever undertaken in the Western Hemisphere. All told, project participants:
- logged an incredible 150,000 hours of time in the field, allowing a thorough assessment of how bird distributions have changed in Ontario since the first Atlas (1981-1985)
- undertook 69,000 point counts across the entire province allowing us to provide the first maps of relative abundance for many species in Ontario.
- submitted an astonishing 1.2 million individual breeding bird records, making the Atlas database an incredibly powerful foundation not only for the book itself, but for innumerable bird research and environmental management applications for many years to come.

Information taken from www.birdsontario.org/atlas where more information is available.