Sound Effect References

"Bird Whistling, A.wav" by InspectorJ (www.jshaw.co.uk) (https://freesound.org/s/339326/) licensed under CCBY 3.0

"Footsteps in the forest" by Astounded Sound, Christopher J Astbury, Switzerland (https://freesound.org/s/518585/) licensed under CCBY 3.0

"passing trucks 005.wav" by tim.kahn (https://freesound.org/s/249536/) licensed under CC BY-NC 3.0