Birch Island Gallery / Photos by Michael Butler / Northern Water Snake (<em>Nerodia sipedon</em>) ingesting a brown bullhead (<em>Ameiurus nebulosis</em>) - a member of the catfish family. The fish has erected its sharp, serrated pectoral fins as a defense. July 20, 2008, Sand Lake.

Northern Water Snake (Nerodia sipedon) ingesting a brown bullhead (Ameiurus nebulosis) - a member of the catfish family. The fish has erected its sharp, serrated pectoral fins as a defense. July 20, 2008, Sand Lake.