1.   But the agency said its study found that boat traffic disturbs feeding by eagles, which are listed under federal law as threatened with extinction.

2.   Or it could be that the constant tourist traffic has disturbed the elephants.

3.   Many experts believe that about half of those come from traffic pollution, which includes not only exhaust emissions but also dust from tires and debris disturbed by traffic.

4.   Little traffic disturbed border posts dividing the countries but travellers and merchandise were at least free to cross over, subject only to bureaucratic form-filling.