Which of the following species is NOT listed as part of a fisher's diet in the source material?

• A. Snowshoe Hare
• B. Porcupine
• C. Squirrels
• D. Beavers

Answer: (D)

Understanding what prey are listed for fishers in the given material helps you see which option doesn’t fit. Snowshoe hare, porcupine, and squirrels are all commonly documented as fisher prey in many field sources because these animals are accessible and fit well with a fisher’s hunting abilities and energy needs. Beavers, while possible prey in some contexts, are not included in this source’s list of fisher diet. That makes beavers the exception and the correct answer in this material. If beavers do appear as potential prey in other sources, that reflects variation across studies or populations, but for the material in question, they aren’t listed as part of the fisher’s diet.