Groundhogs (Marmota monax), also known as woodchucks, tend to live in open farmland and pastures. They are herbivores that live on a strict diet of grass, vegetables and legumes, and may damage crops and gardens. They also may gnaw underground power and water lines and their burrowing causes ground instability and may weaken foundations.
Gophers (Thomomys talpoides) cause damage to plants in agricultural areas, residential gardens and municipal parks, damage to integrity of surface and sub-surface structure restricting ability to till soil.
Ground squirrels (Spermophilus richardson) occasionally cause damage to crops, gardens and park land. Extensive burrowing causes ground destabilization and damage to foundations and irrigation systems. Ground squirrels may carry disease.
Common species of mice (Peromyscus maniculatus) and voles (Microtus pennsylvanicus) cause minor structural damage and may also raid and contaminate crops and food stores, as well as carry transmittable diseases.
Brown rats (Rattus norvegicus), also known as Norway rats, are not found in Alberta. They is strictly prohibited and exterminated on sight under provincial law. Rats damage structures, piping and wiring, raid and contamination grain and food stores, and spread disease. Any suspicion of the presence of a rat, dead or alive, should be reported immediately to Alberta Rat Control at 310-7287.