“Coronas of the Sun”, Scene 4: Forest on Mira, Outside the Dalek Ship

On these albums

Doctor Who: The Daleks’ Master PlanTerry Nation & Dennis Spooner starring William Hartnell, Peter Purves & Adrienne Hill · 2001Soundtrack

Doctor Who: The Lost TV Episodes - Collection TwoVarious Artists · 2011

Source: MusicBrainz recording 89c4ecbb-73aa-4ce2-a22a-962cc843e764 (CC0).