About the Tawny-crowned Greenlet
The ochre-crowned greenlet (Tunchiornis ochraceiceps) is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Mexico, in every Central American country except El Salvador, and in Colombia and Ecuador. This species was formerly known as the tawny-crowned greenlet and was considered to be conspecific with the Para greenlet, Guianan greenlet and rufous-fronted greenlet.
The ochre-crowned greenlet was formally described in 1860 as Hylophilus ochraceiceps by the English zoologist Philip Sclater. The specimen had been collected in the state of Oaxaca of southwestern Mexico by the French ornithologist Adolphe Boucard. The specific epithet combines the Modern Latin ochraceus meaning "ochraceous" with -ceps meaning "-capped". The species is now placed in the genus Tunchiornis that was introduced in 2014.
The IOC and AviList recognize these five subspecies: Wikipedia →