这位拓荒者是个真正的定居者，他在偏远山谷中建起了自己的农舍。

The homesteader was a genuine ___nester, establishing his farmhouse in a remote valley.

啄木鸟是一种聪明的筑巢者，它会在树干上凿洞作为巢穴。

The woodpecker is a clever ___nester, carving holes in tree trunks for its shelter.