What kind of animals live in nests known as dreys?
Answer: A drey is the nest of a squirrel, usually built of twigs and branches that are typically assembled in the forks of a tall tree. The finished drey is a hollow sphere, about a foot or more in diameter, with branches and other materials loosely woven on the outside and an inner surface lined with a variety of finer materials, such as grass, moss, and leaves. Adult squirrels often build two dreys so they have an option if one is disturbed. The average drey is only used for a year or two before it is abandoned, although remnants of the nest can be visible for years.