Hello, I have a silver maple that is at least 60+ years old which can be seen in the attached pictures. It's overall diameter is approximately 44". We have plans to put up a shed next to the tree, our original plan was to save it due to it's age. However, I noticed this spring that it is not as full at the top as it has been in the past two years since we bought the property. Also, it is not as full as other younger maples on the property I would like to save it, but if it is on the verge of death I would rather take it out now with no shed than have to try and do it with the structure in the area. Do you think it is dying? Please let me know as soon as you can, as there are tentative plans to take this tree down this weekend (6/10 or 6/12). Thanks in advance! Tom Ostrowski