This comprehensive report on the state of Canada's most endangered bird species - the Northern spotted owl - looks at habitat loss in southwest BC, the owl's only home in Canada. Logging of oldgrowth forest is the reason for the owl's plight and the report lists the top ten loggers of owl habitat.

Map 2: Logged Spotted Owl Habitat In Canada

A logging activity overlay was used to illustrate the extent of post 1940 logging in the Spotted Owl study area. 1940 represents the earliest readily available data on commercial logging. The remaining forest cover (below 1,370 m elevation) is shown separated into age classes. Age class 8-9 (greater than 140 years), with a height class > 2 (taller than 19.3 m) is used to show the extent of Spotted Owl suitable habitat. Age class 6-7 (101 - 140 years), with height class >2 (taller than 19.3 m) is used to show the extent of middle aged forest and age class 1-5 (less than 101 years) is used to show younger forests, due to younger species types, natural disturbances, and pre-1940 logging activity.