. The Canadian field-naturalist. 1999 Notes 303. Figure 1. (A) Loose mound of vegetation on top of hummock island in soutliem Indiana, 11 April 1996; and (B) complex nest-like structure constructed by adult female River Otter, 1 May 1996. Two entrance chambers are denoted by white triangles. White arrow indicates common reference point to compare changes in den site. Photographs by S. A. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resembl
. The Canadian field-naturalist. 1999 Notes 303. Figure 1. (A) Loose mound of vegetation on top of hummock island in soutliem Indiana, 11 April 1996; and (B) complex nest-like structure constructed by adult female River Otter, 1 May 1996. Two entrance chambers are denoted by white triangles. White arrow indicates common reference point to compare changes in den site. Photographs by S. A. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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