Figure 54.— Nest (in upper left) in box 36. Although the next cavity is in one corner and elevated, the base covers the en- 
tire box. It is composed of honeysuckle vine and the terminal fascicles of pine leaves. Despite the peripheral loca- 
tion of this harborage box, more rats defecated here than in any other box. As the lining became soiled the rats brought 
in more nesting material, thus producing a gradual elevation to the structure. Most of the feces are moldy and whitish. 
Photograph taken May 10, 1948. 
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