In chapter 19 in The Sign of the Beaver what is Matt interested in watching?

In Chapter 19 of "The Sign of the Beaver," Matt is particularly interested in watching the process of the beavers building their dam. He is fascinated by their teamwork and the intricate way they construct their home, reflecting his appreciation for nature and the skills of the animals around him. This observation also highlights his growing understanding of survival and the importance of resourcefulness in the wilderness.