Dwarf Vireo (Vireo nelsoni) [XC694444]
by Manuel Grosselet from Azumbilla, Nicol\u00e1s Bravo, Puebla, Mexico (song)
Dwarf Vireo (Vireo nelsoni) [XC351116]
by Al\u00e1n Palacios from Carretera 175\/Tuxtepec-Oaxaca--Km 200-205, Oaxaca, Mexico (song)
Subspecies
No subspecies.
Initially named as Vireo nanus, but that name invalid, as preoccupied. Probably most closely related to, and has been thought to form a superspecies or to be conspecific with, Black-capped Vireo (Vireo atricapilla).