For information on foreign entry and exit requirements, see the Department of Stateâs webpage. If seeking to enter the United States after temporary travel abroad, you will need to present a valid, unexpired âgreen cardâ (Form I-551, Permanent Resident Card).
Black Bears. Black bears are the smallest and most common of the three bear species found in North America, and the only species found in Pennsylvania. This fact sheet covers general black bear biology, damage caused by black bears, and damage control strategies.Black bears are the smallest and most common of the three bear species found in North America, and the only species found in Pennsylvania. Their fur is generally uniform in color but is not necessarily black.n Pennsylvania, bear habitat typically consists of mixed hardwood forests. Oak, hickory, black cherry, and beech trees provide the favorite mast of the black bear. An understory of blackberries and blueberries attracts bears; cornfields and abandoned apple orchards also are popular feeding sites.
Learn about vole biology, food habits, damage caused by voles, and damage control methods. Four species of voles occur in Pennsylvania: the meadow vole, the pine vole, the red-backed vole, and the rock vole.The red-backed vole and rock vole are primarily restricted to mountainous areas, and it is the meadow vole and pine vole that are most often responsible in damage situations.oles eat a wide variety of plants, most frequently grasses and forbs. In late summer and fall, they store seeds, tubers, bulbs, and rhizomes. They eat bark at times, primarily in fall and winter, and will also eat grain crops, especially when their populations are high.