The Greater Prairie-Chicken was listed as Extirpated in Canada in 1990 (COSEWIC 2009h). Populations in Alberta, Manitoba and Ontario had disappeared by the 1950s or 1960s, and the last sightings were from Saskatchewan in the late 1980s and early 1990s (Houston 2002). Thus, the population in Canada has clearly declined since the 1970s. The national population goal is to recover the Canadian population. Its population is therefore below the lowest acceptable level relative to its national population goal until it is de-listed from the Species at Risk Act.
Additional information on: Breeding Bird Survey (BBS) - Canadian analysis