As an arborist, I often feel like I need to double as a detective. Trees, obviously, cannot tell us verbally how they are "feeling" or why they are behaving in a certain way. We have to look for clues as to what is possibly going on with them. When I am asked why a tree is performing poorly, oftentimes I need to swap out my helmet for a Sherlock Holmes cap and start digging around, asking questions of the tree's caretaker and standing back to observe the environment in which the tree exists.