Examples:
https://www.youtube.com/watch?v=W8LcUT2JLvU
https://youtu.be/W8LcUT2JLvU
Search Youtube: Bubo virginianus nigrescens

Bubo Virginianus Nigrescens

Berlepsch 1884 - 686898
Animalia
Subspecies
 
Zoonomen - Zoological Nomenclature Resource, 2005.08.07 website 07-Aug-05
2005-08-07
"Zoonomen Nomenclatural data" maintained by Alan P. Peterson at http://www.zoonomen.net
Bubo Virginianus Nigrescens