The one in the water did not mind but swam outward where he was caught in the current that started to carry him over the dam. At this stage his mother appeared. She simply rose beneath him. He accepted the opportunity and squatted upon her back with that expressionless face which beavers carry most of the time. There are occasions, however, on which beavers show expression of fear, surprise, eagerness, and even intense pleasure. The youngster sat on his mother’s back as though asleep while she swam with him to the house. Here he climbed off in a matter-of-fact way, as though a ride on a ferry-boat was nothing new to him. A few weeks later the mother robin who had become so wrought up over my hiding had times of dreadful excitement concerning the safety of her children. If anything out of the usual occurs, the robin insists that the worst possible is about to happen. This season the mother robin had nested upon the top of the beaver house. This was one of the safest of places, but so many things occurred to frighten her that it is a wonder she did not die of heart disease. The young robins were becoming restless at the time the young beavers were active. Every morning, when on the outside of the beaver house each young beaver started in turn as though to climb to the top, poor Mother Robin became almost hysterical. At last, despite all her fears, her entire brood was brought safely off. During the summer, a majority of the Broken Tree beavers abandoned the colony and moved to other scenes. A number built a half-mile down stream, while the others, with one exception, travelled to an abandoned beaver colony on the first stream to the north. Overland this place was only half a mile from the Broken Tree, but by water route, down stream to the forks then up the other stream to the colony, the distance was three miles. This was an excellent place to live, and with but little repair an old abandoned dam was made better than a new one. All summer a lone beaver of this colony rambled about. Once he returned to the Broken Tree colony. Finally, he cast his lot with the long-established colony several miles down stream. Late this summer a huge landslide occurred on the stream above the Broken Tree pond. The slide material blocked the channel and formed a large, deep pond. From this dam of débris and the torn slope from which it slipped came such quantities of sediment that it appeared as though the pond might be filled. Every remaining colonist worked day and night to build a dam on the stream just above their pond. They worked like beavers. This new pond caught and stopped the sediment. It was apparently built for this purpose.