Otter
Otters are active all year, usually from early evening through early morning, even in the coldest of weather. Diet includes fish, crayfish, amphibians, insects, mammals and birds. In clear water, otters can see and catch fish. In murky water, they use their whiskers to locate prey.
Clean rivers, streams, ponds and lakes with plentiful fish are the key to their survival. Poor water quality, stream pollution and deforestation during the late 1800s and early 1900s caused otters to disappear from some areas. In the 1980's, the river otter was designated an endangered species in Nebraska and other states, but has made a comeback there and in Missouri and Ohio