Rocs[1] are a species of birds found in Donkey Kong Jungle Beat. All major Rocs found in the game are rulers of various kingdoms. All of the Rocs that Donkey Kong faces must be defeated by breaking the huge black egg they carry.
The attacks the Rocs use primarily consist of firing Shadow Meteors, creating wind, and launching feathers.
Even though the black eggs are not directly connected to them, their bodies are seen exploding after the destruction of their eggs. It is possible the reasoning for this is that the first explosion (caused by the black egg) is the one that causes the birds to explode shortly afterward.