Ontario Breeding Bird Atlas (2001-2005): rare species and colonial data
Ontario Ministry of Natural Resources
Canadian Wildlife Service
Ontario Field Ornithologists
Project name: Ontario Breeding Bird Atlas
Goals : The atlas represents an enormous coordinated effort by over 3,000 birders who surveyed the province from Lake Erie to Hudson Bay. It summarizes the state of Ontario birds, including information on each species' biology and abundance. Special sections analyze changes in bird populations and distribution, indicating which species are most imperiled and which are thriving.
Dataset summary : Ontario Breeding Bird Atlas (2001-2005): includes details of rare and colonial species (date, location, etc.).
Year started : 2001
Year finished : 2005
Geographic area covered : Ontario
Primary species covered : Rare and colonial breeding bird species