Postpone your spring tree cutting
Squirrels and raccoons are denning in tree hollows with babies, and songbird and woodpecker nesting season is soon to follow. Trees are virtual apartment houses for wildlife, so before doing any cutting, do a full survey for active dens or nests. The best time to cut down trees is late fall (but look for late squirrel litters in leaf nests or cavities). If you do cut down a tree and baby squirrels or raccoons tumble out, cease all activity and leave the area, so mom has a chance to retrieve her young and take them to an alternate den site.
Don't kidnap fawns
People don't realize that it's entirely normal for deer to "park" their fawns somewhere. The doe will only visit and nurse her fawn a few times a day to avoid attracting predators to her scent (the fawn is odorless). When the fawn is a month old, he will begin traveling with his mother. Just leave the fawn alone unless you know that the mother is dead, or if the fawn has been crying and wandering around all day.
You're starting to get your garden ready, yet the neighborhood woodchuck doesn't know the pending buffet isn't his for the taking. A mesh barrier put around the garden will keep him out, as long as two tricks are built into it: run the mesh loosely between stakes on the top portion is wobbly, which will prevent him from climbing over. Run the bottom 12 inches of the mesh outward, in an L-shape, parallel to the ground, and secure it with landscaping staples. This apron will prevent the woodchuck from digging under your barrier.