Rabbit rascals  Calling cards: Ravaged vegetables, beheaded
borders and flowers (especially tulips), and gnawed trees, such
as red maple, honey locust, and evergreens.  Protection: Install
2-ft.-high fences that extend to the ground or below ($50 for
100 ft. of galvanized poultry fencing). Surround young tree
trunks with plastic tree guard cylinders ($10).  Change habitat:
Eliminate piles of brush, barricade cozy spots under sheds, and
flatten back-lot debris piles where rabbits nest. Ivy, wisteria,
and periwinkle will curb the munching, and fragrant herbs like
thyme and lavender will turn them away.  Squirrely pests
Calling cards: Bumps in the night because they nest in your
attic; power loss due to frayed wires; missing vegetables and
flower bulbs; quickly emptied bird feeders.  Protection: Plug
house entry places, such as gaps around utility pipes, broken
windows, and uncapped chimneys. Cover wires with plastic pipe
that will rotate, causing the squirrel to fall ($2.50 for a
2-ft. section). Sandwich bulbs