However it is believed they prefer pure conifer forests because they can forage in them more efficiently and survive in them better than in broadleaf forest. It is believed that the only real way to ensure the continued presence of red squirrels in an area is, if possible, to keep grey squirrels out, or, at least to keep their number low. This may be achieved by habitat management to alter the tree species composition and age structure of woodland to suit red but not grey squirrels. Special food hoppers which provide food for red squirrels but not the heavier grey squirrels, can help to tip the balance in favour of red squirrels. Re-introductions to large pine forests may be an important conservation tactic, although further research into the health and welfare of red squirrels during captivity and all phases of a reintroduction programme is needed.
Red squirrels are timorous and easily stressed.
Reintroducing them to an unknown environment where they are in direct competition with greys is inhumane. Reintroductions will only work if the habitat is suitable, big enough and is being managed to encourage red and discourage grey squirrels. The Handbook of British Mammals. The Natural History of Squirrels. The Red Squirrel.