Ontario Breeding Bird Atlas (1981-1985): raw breeding evidence

Birds Canada

Ontario Ministry of Natural Resources and Forestry

Canadian Wildlife Service

Ontario Field Ornithologists

Ontario Nature

Project name: Ontario Breeding Bird Atlas

Goals : The first Ontario Breeding Bird Atlas was carried out from 1981-1985, and involved the efforts of over 1,300 volunteers who collectively carried out more than 120,000 hours of field work. This resulted in a data base of over 400,000 bird-locality records, giving unprecedented information on the breeding distribution of birds in Ontario.

Dataset summary : Ontario Breeding Bird Atlas (1981-1985): breeding evidence as reported by participants and effort information from individual visits

Year started : 1981

Year finished : 1985

Primary species covered : All breeding bird species