Light-bark trees are most notorious for producing lots of sap when wounded. These varieties include maples, birches, poplars, dogwoods, magnolias, and elms, and they will bleed more when the trees are dormant. That’s why it’s a good idea to prune them in the summer months rather than waiting until winter.

You need to remove all branches affected by Dutch elm disease. If your tree has several affected branches, you will probably need to remove the entire tree. First, consult a pro to be sure that you’ve correctly identified it as an elm tree. Make sure the tree is properly disposed of with a plastic covering or through debarking, chipping, or burning.

Unfortunately, if you cut the top off a palm tree, it will die. Instead of budding or branching out, the top begins to slowly rot. That's why having a professional tree trimming at least twice a year is a good idea. If you don’t have experience with trimming your palm tree, you might accidentally cut the top off, leaving a dead and rotting tree in your wake.

The lifespan of a bird's nest depends on the species. The building process can take from two days to three weeks. Once built, the nesting period for baby birds can last from two to ten weeks before they leave the nest. While most young birds are ready in two to six weeks, some predatory species may need up to two and a half months. Some species nest four to five times per year, so a nest could remain in use for several months. For specific information about a particular nest's longevity, it is best to consult a wildlife professional.