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Species at risk 2013-14 recovery action summary : ferruginous hawk

Description

Includes background information on the ferruginous hawk, including its risk category and where it can be found in Alberta. Lists the recovery plan in effect and the recovery goal for the... More ≫

Description

Includes background information on the ferruginous hawk, including its risk category and where it can be found in Alberta. Lists the recovery plan in effect and the recovery goal for the ferruginous hawk, strategies being used to reach the recovery goal, a short summary of progress on recent and ongoing recovery actions, and any upcoming actions being considered to aid recovery of the species.

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Population estimates and a survey protocol for ferruginous hawks in Alberta

Description

The ferruginous hawk is designated a Threatened species under Alberta's Wildlife Act. Recent declines in the ferruginous hawk population in Alberta prompted an evaluation of the current technique... More ≫

Description

The ferruginous hawk is designated a Threatened species under Alberta's Wildlife Act. Recent declines in the ferruginous hawk population in Alberta prompted an evaluation of the current technique for surveying ferruginous hawks. Recent population estimates have had relatively low precision with confidence intervals ranging from 30-50% of the estimated population. The primary objectives of this paper are to re-evaluate the ferruginous hawk population estimate by stratifying the sample units using the native prairie vegetation baseline inventory data, and to develop a standardised protocol for monitoring population trends of ferruginous hawk in Alberta.

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