CPR Bassano Subdivision Right of Way - Preservation of Habitat for the Loggerhead Shrike

a submission by
Alberta Fish and Game Association

prepared by
Dave Scobie

to
The Hon Ty Lund, MLA
Minister of Environmental Protection

The loggerhead shrike (Lanius ludovicianus) is a medium robin sized bird that is currently listed as Threatened in western Canada by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). The eastern population is listed as Endangered. The loggerhead shrike has shown the greatest rate of decline of any other passerine (perching) bird in North America in the last 25 years. Overall, breeding populations have declined at an annual rate of about 3% since 1966. The most frequently cited reason for decline is habitat limitation.

The CPR Bassano Subdivision right of way provides the diversity of habitat that is required by the shrike as well as for many other species. It is estimated that 36% of the total provincial loggerhead shrike breeding population, the densest in Alberta, nest along the right of way. Securing long term protection of this area in order to preclude cattle grazing, control haying and prevent brushing or the use of toxic agricultural chemicals, is essential.

This line is due to be abandoned and we are concerned about the loss of this critical loggerhead shrike habitat. We would respectively submit that the Province of Alberta seriously consider entering into a 99 year lease agreement or agree to a conservation covenant with CPR.

Please find enclosed correspondence between Doug Collister and CPR. Mr. Collister's Master Thesis, Breeding Ecology and Habitat Preservation of the Loggerhead Shrike in Southeastern Alberta, includes a portion of the Bassano subdivision as his study area. The thesis highlights the importance of this right of way for the survival of the shrike. This correspondence documents CPR's awareness of the critical part that the Bassano Subdivision right of way plays in the grassland community. We are also enclosing a brochure on the Loggerhead Shrike from the Canadian Wildlife Service - Hinterland Who's Who series for your perusal.

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