grey squirrel

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Related to Grey squirrels: Black Squirrels, Red Squirrels

grey squirrel

a grey-furred squirrel, Sciurus carolinensis, native to E North America but now widely established
References in periodicals archive ?
Following the publication of a Saving Scotland's Red Squirrels spring survey 2017, Scottish Wildlife Trust conservation officer for Argyll, Trossachs and Stirling Mary-Anne Collis said: "We are putting extra effort into monitoring the health of the local grey squirrels, so that we can detect any occurrences of the deadly squirrelpox virus and take action to prevent it reaching the red populations.
Grey squirrels arrived from North America in the 19th century and now outnumber red squirrels by more than 15 to one.
Both species were equally successful at the easy task - opening a transparent lid - but more of the grey squirrels cracked the difficult one, a more complex task of pushing and pulling levers.
CHILDREN give thumbs-up signs over the body of a grey squirrel shot by activists who brag of killing the woodland "invaders".
Factors such as wet weather and a lack of natural foods favoured by grey squirrels such as beech nuts and acorns in autumn 2015 are likely to have influenced the result, coupled with a huge conversation effort by RSNE staff, private estates and hundreds of community volunteers across the north of England working together to protect red squirrels.
A law was passed in 1938 banning further importation of grey squirrels, but the damage had been done, inadvertently heralding the demise of the red squirrel in most of Britain.
Grey squirrels outcompete the reds for resources and carry a squirrelpox disease that is fatal to the native species.
In 2014, three orphaned grey squirrels were admitted and diagnosed with squirrel fibroma virus (squirrel pox) at the Wildlife Medical Clinic at the University of Illinois (Rivas et al.
The Government has signalled it intends to scrap a law which monitors grey squirrel numbers, saying it was "no longer" possible to halt the onslaught of the animals.
Grey squirrels carry the virus without being affected but it is deadly to reds.
The landmark case set an important precedent for killing grey squirrels - classified as a non-native invasive species - and could pave the way for hundreds of other prosecutions across the UK.
The RSPCA brought the prosecution because they say that grey squirrels are not vermin.