Assertion: nuthatch | /r/HasProperty | described
Facets:
Source sentences:
text: Though the primary habitats of Sitta przewalskii and the white-cheeked nuthatch (Sitta leucopsis) are separated from each other by almost 1,500 km (930 mi), Przevalski's nuthatch was described as closely related to the white-cheeked nuthatch, and was thereafter often considered and treated conspecifically, as a subspecies of S. leucopsis.[fn. 2]