The Menagerie

The Menagerie is a track from the Halo 3: ODST Original Soundtrack. It contains the smaller tracks Ground War, Oscar Mike, Unleashed, and On the Prowl. 

A menagerie is a place in which a variety of usually exotic animals are kept. A fitting title for music played while in an African wildlife reserve.

The track takes place during the 2nd flashback, Uplift Reserve (Level) when you play as Dutch.