mccownii

McCownii refers to a specific taxonomic epithet, often found in scientific names of organisms. It is most commonly associated with the McCown's longspur (Calcarius mccownii), a species of bird native to North America. This small sparrow-like bird is found in the grasslands and prairies of central and western Canada and the United States. It is known for its distinctive plumage, particularly the male's black breast spot and rufous wing patch during the breeding season. McCown's longspur is a migratory species, spending its winters in the southern United States and Mexico.

The epithet "mccownii" honors John Porter McCown, an American soldier and naturalist who collected specimens of the bird in the mid-19th century. The species was first described by American ornithologist George Newbold Lawrence in 1851. While McCown's longspur is the most prominent organism bearing this epithet, it is possible that other, less well-known species or subspecies in various fields of biology may also be designated with "mccownii" in their scientific nomenclature. Further investigation into specific taxonomic databases would be required to confirm any other uses of this epithet.