Sometimes it's just a molten feather on the trail but regardless, it's there for a reason. Someone is going to come along in this very place, in this very spot. Perhaps they are looking for a sign and haven't seen one in a very long time. Perhaps they are thinking of something that bothers them or maybe they are grieving a loss. Suddenly, "Look! A feather!" and they completely forget what was troubling them.
It's always By Design to shift your mood. To surprise you and to get your mind off of what you were thinking about. If you have hope, the feathers are fulfilling their purpose. If you have no hope, then... they are just a feather.
There is always more than meets the eye. The key is to keep working on your Hope. Your Faith. It will show you a beautiful new world if you are only open to it.