Grey Squirrels
Key Features
Grey Squirrels (Sciurus caroliensis) are found in many areas of the UK, and pest control companies often have to treat as many
squirrel infestations as rat problems.
Grey Squirrels weigh as much as 500 grams, and are excellent climbers, and often infest loft spaces and attics.
Biology:
Female gives birth to 3 - 4 live young, and have two litters per year - in February/March, then in June/July. Young squirrels are
weaned in 10 weeks. The young are born in specially constructed nests called 'dreys'.
Squirrels possess excellent senses of vision, touch, taste, smell and hearing. Food sources include garbage in urban areas and
nuts, cereal or tree bark in rural areas.
Distribution
Grey squirrels are prevalent across the UK. Increasingly important in urban areas, this species has adapted readily to
environments with close proximity to large human populations.
Significance
Causes severe damage by chewing, and can consume and contaminate food destined for human consumption. Causes noise
nuisance when lofts become infested.
Control:
A planned survey and inspection will reveal areas of infestation and nesting. Usually involves use of well protected special
anticoagulant bait. Other means may be used, such physical control methods. Monitoring is also critical for successful
management of established squirrel populations.
