F. Rosell et B. Hovde, Pine marten, Martes martes, as a Eurasian Beaver, Castor fiber, lodge occupant and possible predator, CAN FIELD-N, 112(3), 1998, pp. 535-536
We napped three adult Eurasian Pine Martens (Martes martes) at an earlier t
rapped-our Eurasian Beaver (Castor fiber) lodge in southern Norway. At anot
her site, Pine Marten feces containing remains of beaver claws and hair wer
e found outside a beaver lodge. Pine Martens apparently feed on beavers and
use their abandoned lodges as resting sites.