Appears to be primarily crepuscular and nocturnal, but occasionally is trapped during the day. No data found. Information is scarce. One litter was found in March. Litter size probably 3-4, with 4 most frequent.
Predators are likely to be owls, feral cats, Pacific giant salamanders, and large fish.
Whitaker et al. This species is poorly studied. Mammals of the Pacific states. Maser, C., B. R. Mate, J. F. Franklin, and C. T. Dyrness. Natural history of Oregon coast mammals.