Heralding principle
Lessons from Trumpeter Hornbill
Sound the canopy.
Canopy Trumpet Calls
Core lesson
A voice carries farther when it is shaped for the forest.
Biological basis
Trumpeter Hornbills move through forest canopies and use loud ringing calls, along with large bills and casques typical of hornbills.
Best use cases
Where this lesson tends to be most useful in practice.
VoiceSignalingPresenceForest communicationCalling your place