nuthatch

Any of several small, short-tailed birds of the genus Sitta found in temperate regions of the Northern Hemisphere, having a long sharp bill and known for climbing down trees headfirst.

A bird of the family Sittidæ.

Any one of several species of birds of the genus Sitta, as the European species (Sitta Europæa). The white-breasted nuthatch (Sitta Carolinensis), the red-breasted nuthatch (Sitta Canadensis), the pygmy nuthatch (Sitta pygmæa), and others, are American.

Any of various small passerine birds from the family Sittidae found throughout the Northern hemisphere that have the unusual ability to climb down trees head first.

any of various small short-tailed songbirds with strong feet and a sharp beak that feed on small nuts and insects