I think there should be a way to build different kind of structures. Like grass huts which would require a bunch of nesting material. And there could be other types of structures as well. Grass walls, grass huts, burrows, grass and stick towers, and whatever else you could come up with. Oh and here is an example of everything I listed could do:
Grass walls: Makes it take extra long for predators to find your nichelings.
Grass huts: Can place multiple nests (3) in the grass huts. And can protect newborns from blue birds.
Burrows: Nichelings can hide in a burrow when a predator is nearby, if your in a burrow you cannot be seen. But only one nicheling per burrow.
Towers: Basically for winged nichelings, or for nichelings to lookout, oh and with the new call feature or whatever it's called (I have bad memory) can be used.
