Other forms: nuthatches
A nuthatch is a small bird that walks head-first down tree trunks. Spot a nuthatch, the nuthatch on the feeder, a nesting nuthatch.
It is the only British bird that goes down a trunk head-first, which is how it finds insects a treecreeper going up has missed. It also plasters mud round its nest hole to narrow the entrance.
1nounnuthatchA small bird that walks head-first down tree trunks.
“A nuthatch scurried head-first down the trunk of the old oak.”
nuthatch is a bird.
Middle English nuthache is nut plus a word related to hack, from the way it wedges and hammers nuts open.
Middle English
nutthache
English, today
nuthatch
From Middle English nutthache, notehache, nuthake, nuttehake, nothak, equivalent to nut + hatch (akin to hack). Compare English nutcracker. Compare typologically kowalik (akin to kować).
Etymology from Wiktionary, CC BY-SA