Moose will eat foliage, twigs, and bark. Featherings are the inner bark of twigs and twisted shoots. Other food resources include leaves, shoots, buds, pollen, seed pods, sap, cones, bark, and twigs. Females lay eggs on trees, bushes, twigs, and other objects. Females alone build nests of twigs, grasses and mosses. Eggs are laid on twigs or plant stems. Other less common food resources include leaves, pollen, twigs, and bark. The piglets are whelped in a nest constructed from twigs, grasses and leaves. Both the twigs and leaves contain mucilaginous sap. Many animals feed on the leaves, twigs, and berries of spicebush. They are able to descend head-first and hang upside-down beneath twigs and branches. Others look like inedible objects, such as twigs or leaves. Juniper oil is distilled from the wood, twigs and leaves. There is a preference for small material&colon; branches, twigs, and stems up to . It is attached to the twigs of the tree with spider silk.