The arboretum is well known for its trees and plants, but few people know that it is also the home to several species of fairies. As their name suggests, the cedar fairy builds its home in cedar trees. The fairies themselves are tiny, and are rarely spotted. A keen observer may be able to find their nests, which are quite small (5 cm, or 2 inches in length), and are usually gourd shaped. Cedar fairies are insectivores, and will catch small mites and mosquitoes to consume. They hibernate during the winter, and wake in the spring when the insect population begins to increase. Recent genetic studies (Fae et al, 2017 J Sprite Res, Vol 73) found that the cedar fairies are closely related to the similarly-sized thicket fairies, but more genetically distant from the larger arbor fairy.