Toronto: Royal Ontario Museum, (1991. second edition). Octavo, paperback, maps.

This authoritative guide to the occurence and status of birds in Ontario provides concise information on 442 confirmed bird species recorded in the province, and on 12 as yet unconfirmed. Organised by American Ornithologists' Union order and management, the checklist includes each species by common and scientific name, it indicates breeding status, seasonal distribution and abundance, breeding season as indicated by egg dates, and the subspecies found in Ontario.