A pen and ink study of the foxes is in the Schäfer collection, Schweinfurt, no. 3395a. (see R. Feuchtmller, Friedrich Gauermann, Rosenheim, 1987, no. 285)

There is also a lithograph of the same subject by Weixelgärtner.

We are grateful to Prof. Feuchtmller for his assistance in preparing this catalogue entry.