A bird found in Japanese mountain woodland. It has a short tail and may perch on trees with its head pointing down.
It has a short tail and a distinctive head-down posture on trees. The Hokkaido subspecies has a white belly.
Eurasian Nuthatches shape nest entrances with mud, narrowing openings in nest boxes to about 2.5 cm.
In 2019, researchers in Zuojia Nature Reserve, Jilin, China, presented predator models near 17 Nuthatch nests and 20 Cinereous Tit nests while chicks were in the nests. Both species reacted more strongly to Common Chipmunk models than to Red Squirrel models. Nuthatches were more aggressive toward chipmunks than the tits were, while the two species responded similarly to squirrel models. The authors suggested that a mud-narrowed entrance may help nuthatches gauge the threat posed by different nest predators. The study links the way a Nuthatch shapes its nest entrance with how parents defend their young.
IUCN Red List (BirdLife International) · Least Concern (LC) · Global
BirdLife International’s 2018 global IUCN assessment lists the Eurasian Nuthatch as Least Concern (LC), with a stable global population trend. In a three-year study of grazed old-oak woodland in Slovakia, breeding pairs tended to hold territories where trees and cavities were more numerous. The study connects the species’ nesting habitat with a woodland structure containing trees and usable cavities.