You are here. Cross U.S. Borders. Almost a million times each day, U.S. Customs and Border Patrol (CBP) officers welcome international travelers into the U.S. In screening both foreign visitors and returning U.S. citizens, CBP uses a variety of techniques to assure that global tourism remains safe and strong.
Birches are enchanting trees that embody beauty and grace. While most types of Birch trees grow to roughly 40 feet, some, such as the Paper and Yellow Birch can soar to 80 feet tall.irches are enchanting trees that embody beauty and grace. While most types of Birch trees grow to roughly 40 feet, some, such as the Paper and Yellow Birch can soar to 80 feet tall.
Betula pendula, commonly known as silver birch or warty birch, is a species of tree in the family Betulaceae, native to Europe and parts of Asia, though in southern Europe it is only found at higher altitudes.ilver birch. The silver birch is a medium-sized deciduous tree, typically reaching 15 to 25 m (49 to 82 ft) tall (exceptionally up to 31 metres (102 ft)), with a slender trunk usually under 40 cm (16 in) diameter.