However, squirrels may be absent because of a shortage of winter and spring shelter in the form of natural cavities. Large, old trees in lawns, parks, or along streets are often maintained by careful pruning and treatment of cavities. Squirrels are unable to find appropriate natural nesting sites, and in those situations, may find quarters in attics and sheds, a bother to homeowners. If a lack of nest cavities seems to be limiting squirrel populations in your neighborhood or on your rural property, a relatively small investment in time and materials may provide dividends in the form of increased squirrel populations. Furthermore, a strategically placed artificial shelter will permit you to enjoy their presence outdoors without them being a nuisance upstairs.
Squirrels readily accept nest boxes.
You can easily construct artificial dens with readily available materials ranging from hollowed-out logs to scrap lumber. While there are no rigid specifications for a den box, the plan described here provides guidelines for building a satisfactory structure. Construction of one of these artificial dens can provide your family a worthwhile weekend project. Especially in rural areas, building and installing several boxes can be a valuable contribution to squirrel habitat improvement by conservation organizations, sportsmen's clubs, and youth groups. Placement of these boxes in suitable situations will result in better conditions for squirrels.