Loggerhead Shrike Eastern subspecies
Scientific Name: Lanius ludovicianus ssp.
Taxonomy Group: Birds
COSEWIC Range: Ontario, Quebec
COSEWIC Assessment Date and Status Change: May 2014
COSEWIC Status: Endangered
COSEWIC Status Criteria: C2a(i); D1
COSEWIC Reason for Designation: In eastern Canada, this grassland bird species has been experiencing large-scale population declines and range contractions since at least 1970. There has been a 26% observed reduction in the number of mature individuals over the last 10 years in Ontario. These declines are primarily related to loss of suitable grassland habitat on both the breeding and wintering grounds. The Canadian population now numbers fewer than 110 mature individuals.
COSEWIC History of Status Designation: The species was considered a single unit and designated Threatened in April 1986. Split according to subspecies (excubitorides and migrans) in April 1991, and each received separate designations. The migrans subspecies was de-activated in May 2014 in recognition of new genetic information indicating that some of the individuals in southeastern Manitoba should not have been included in the migrans subspecies. Further split into a new unnamed subspecies (Eastern subspecies, Lanius ludovicianus ssp.) in May 2014 and was designated Endangered.
SARA Status: No schedule, No Status
Date of Listing (yyyy-mm-dd): 2003-06-05
Please note that this information is provided for general information purposes only. For the most up to date and accurate list of species listed under the Species at Risk Act, please see the Justice Laws Website.
|Loggerhead Shrike migrans subspecies||Non-active||Endangered|
Provincial and Territorial Protection
PLEASE NOTE: Not all COSEWIC reports are currently available on the SARA Public Registry. Most of the reports not yet available are status reports for species assessed by COSEWIC prior to May 2002. Other COSEWIC reports not yet available may include those species assessed as Extinct, Data Deficient or Not at Risk. In the meantime, they are available on request from the COSEWIC Secretariat.
6 record(s) found.
- COSEWIC Status Reports (1 record(s) found.)
- Response Statements (1 record(s) found.)
- Recovery Strategies (1 record(s) found.)
- COSEWIC Annual Reports (1 record(s) found.)
- Permits and Related Agreements (1 record(s) found.)
- Consultation Documents (1 record(s) found.)
COSEWIC Status Reports
COSEWIC Annual Reports
COSEWIC Annual Report - 2013-2014 (2014-10-15)Under Canada’s Species at Risk Act (SARA), the foremost function of COSEWIC is to "assess the status of each wildlife species considered by COSEWIC to be at risk and, as part of the assessment, identify existing and potential threats to the species". COSEWIC held two Wildlife Species Assessment Meetings in this reporting year (October, 2013 to September, 2014) from November 24 to November 29, 2013 and from April 27 to May 2, 2014. During the current reporting period, COSEWIC assessed the status or reviewed the classification of 56 wildlife species. The wildlife species assessment results for the 2012-2013 reporting period include the following: Extinct: 0 Extirpated: 0 Endangered: 23 Threatened: 12 Special Concern: 20 Data Deficient: 0 Not at Risk: 1 Total: 56 Of the 56 wildlife species examined, COSEWIC reviewed the classification of 40 that had been previously assessed. The review of classification for 25 of those wildlife species resulted in a confirmation of the same status as the previous assessment.