Reid: No, it's all included actually. 80 hours is the total time bevfore collision. During that time, the bird is flying either west-east or east-west at 35 mph. In terms of total ground covered (scalar distance, not vector displacement) the direction doesn't matter, and the infinite number of direction reversals at the end doesn't need to be calculated directly. 80 hours at 35 mph gives 2000 miles.
And note that your earlier "boundary case" is clearly contradicted by the problem statement.
[ March 10, 2006: Message edited by: Jim Yingst ]