unsuitable smell

Exploration Stage: Greenhouse
From: Adeline Svensson
Description: I am a journalist. I know a few ways to gather information. What do you think the "bird seller" is hiding? We know he was trying to get birds for hunting. And that he probably clipped the birds' feathers. Wait a minute...what is that smell? That smells weird for a greenhouse. Pine needles! Go find it.
Completed: I have some knowledge of art. Pine needles are used by musicians and ballerinas. It is also used to polish floorboards. But you won't find bows or floorboards in a greenhouse. Why do "bird sellers" need these things?