Eurasian nuthatch
The European population of the Eurasian nuthatch has been estimated as 22.5–57 million birds, suggesting a global total of 45.9–228 million individuals. China, Taiwan, Korea, Japan and Russia each have between 10,000 and 100,000 breeding pairs. The known breeding area is about 23.3 million km2 (9 million sq mi), which is a large proportion of the potential suitable habitat, and the population appears to be stable. The large numbers and huge breeding range mean that this species is classified by the International Union for Conservation of Nature as being of least concern.