Zavaskis, T., Hernandez, D., DiPaolo, B. et al. 2010. Termite mound feeders as naturalistic chimpanzee enrichment. Tech Talk [The Newsletter for Laboratory Animal Science Technicians] 15(4), 1.

These mounds (6 x 4 x 4 ft.) are small enough to fit inside the entrance to the outdoor play yard, yet large enough to prevent the mound from tipping over with several animals on top. First, we constructed a metal framework using strap iron and rebar. We then attached stucco screen to the inside of the frame, and welded pieces of 1.5-in. galvanized pipe inside the framework at various locations to serve as termiting holes (Fig. 1). The pipes' threaded ends allow attachment of PVC end caps to hold food items; these caps can be removed for cleaning. A metal door was fabricated to allow caretaker access to the inside of the mound for filling and cleaning. A concrete layer was then applied, forming a dimpled exterior texture that allows seeds to be spread on the surface of the mound. The color of the final coat of stucco was selected to provide a natural dirt appearance. An Internet search of African termite mound pictures provided many examples of shape and design. The animals forage by inserting a stick into the pipes to obtain food at the bottom of the tube. We provided bamboo pieces or hardwood dowels purchased at the local home improvement store. The sticks may be soaked in flavored water before use to provide additional interest. Food options are limited only by animal preferences and facility policies. Oatmeal with raisins and honey is very popular with the animals; we found that more time-consuming items (like cooked beans or barley) are often less popular.