Editing Nest (section)

===Usage of environment===
Versatility in use of construction material may be an adaptive advantage (less energy used to gather materials) or a disadvantage (less ability to specialize construction).  The available evidence suggests that [[natural selection]] more often favors [[Generalist and specialist species|specialization over flexibility]] in nest construction.<ref name=Hansell />{{why|date=August 2018}}

At the most basic level, there are only two types of nest building: sculpting and assembly.

====Sculpting====
Sculpting is the process of removing material to achieve the desired outcome.  Most commonly this entails burrowing into the ground or plant matter to create a nesting site.

====Assembly====
Assembly entails gathering, transporting, and arranging materials to create a novel structure.  Transportation has the greatest time and energy cost so animals are usually adapted to build with materials available in their immediate environment.