"The beaver is a solid citizen who builds a solid house"! This is one of these simplistically delivered, jolly, Disney documentaries depicting just how the beavers survive, feed, build their lodges and co-exist with all the other beasties in the animal kingdom. There is some nice photography of deer, moose, trout, racoons and their pray - crayfish as well as the beavers - all set to a rather jaunty soundtrack and underpinned by a cheery narrative from Winston Nibler and his vigilance committee! It's entertaining, though hardly overly scientific and worth watching just for the language - "varmints" and "critters"... Good fun.