You might be thinking of:
* A bugler in a forest: A bugler could be in a forest, perhaps as part of a military unit or a park ranger team.
* An animal making bugle-like sounds: Some animals, like elk, make bugling sounds during mating season. These sounds are similar to a bugle, but they are not produced by an actual bugle.
* A metaphor: Perhaps you are thinking of a person who is a strong leader or communicator, like a bugler calling for troops, in a forest setting.
Can you tell me more about the context of your question? This will help me give you a more accurate answer.