What behavior is believed to be the origin of the common name 'nuthatch'?

Answer

Wedging nuts into bark crevices and hammering them open

The name 'nuthatch' is thought to derive from the bird's habit of wedging nuts or large seeds into bark crevices and then hammering them open, effectively 'hatching' the nut.

What behavior is believed to be the origin of the common name 'nuthatch'?
taxonomybirdanimalNuthatch