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Grey Squirrels

The grey squirrel was introduced from the USA in England and Wales between 1876 and 1929. Grey Grey Squirrel
squirrels can cause serious damage through their gnawing of cables, building structures and other vulnerable materials such as insulation as they search for nesting materials.

They will readily inhabit lofts, attics and roof spaces as well as outbuildings. Signs of a squirrels presence will be scratching noises and droppings, however, squirrel droppings can be mistaken for rat droppings. They are not thought to carry human diseases but can bite if they are frightened. In addition, grey squirrels may pass on fleas to domestic animals.


Adult grey squirrels are between 35-50cm in length and are between 450-650g in weight. They 

Grey Squirrel (Sciurus carolinensis)

generally have a grey back and tail (flanks are sometimes reddish).

Grey squirrels can survive in shrubs, hedgerows and trees and build their nests from twigs, leaves and moss. They have a varied diet of which includes acorns, beechmast, tree shoots, flowers and nuts. It also strips bark and eats the sappy tissue beneath. Grey squirrels will also occasionally eat insects and bird eggs. Lifecycle

Reasons for control

Grey squirrels are a serious pest for plantations, where it causes serious damage by stripping bark from tree trunks during the months of May, June and July. They cause problems to market gardeners and damage parks and gardens where cereals, fruit and vegetables can be taken. In urban areas, squirrels can gain access to roof spaces via building defects and cause damage to roof timbers, electrical wiring and plumbing.

Should you be experiencing problems with grey squirrels, contact AG Pest Management today on 01226 288844 or email us

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