You can use it for research or reference. To access the current information, please visit NatureCounts - The State of Canada’s Birds (external link).
In order to plan conservation actions in North America, North American Bird Conservation Initiative partners from the United States, Mexico, and Canada developed a common, ecologically based set of 'ecoregions' appropriate to birds throughout North America. Bird Conservation Regions (BCR’s) function as the primary units within which biological planning is undertaken.
For more information on Bird Conservation Regions, please visit:http://www.birdscanada.org/research/gislab/index.jsp?targetpg=bcr.
For information on Bird Conservation Region Strategies, please visit:http://ec.gc.ca/mbc-com/default.asp?lang=En&n=1D15657A-1.