Black Uruks

The Black Uruks, or simply Uruks of Mordor, were an elite breed of Orc that made up part of Sauron's vast army.
== History ==
Black Uruks were the first Orc-kind of Middle-earth named uruk, originating before the Great Years when they made assaults upon Ithilien in 2475 of the Third Age. (It was almost a millennium later that Saruman in Isengard bred the more familiar Orcs known as Uruk-hai.)
Boromir spotted Uruks of Mordor in Moria, soon before the skirmish in the Chamber of Mazarbul between the Fellowship of the Ring and the many Orc-kinds inhabiting Moria.
Within Mordor, an unknown number of Uruks were stationed at the Tower of Cirith Ungol. After escaping from there, the Hobbits Frodo and Sam saw Uruks march from Durthang towards the Black Gate amidst the mass-movement of all of Sauron's remaining forces.
Murgash is one of them, at the Siege of Gondor, and many others march through the Orc-camp encountered by Sam and Frodo in western Mordor. Most notably, Shagrat, in the Tower of Cirith Ungol, is portrayed as an Uruk.