A parking lot of a chain store drawn from a chain hotel in San Bernardino. The hotel was filled with business people who live in the hotel for weeks at a time. Some come on Monday and leave at the end of the work week, heading West to Los Angeles, or to airports that will take them further away, to migrate home like birds. It is harder to track business migration than it is to be a birder. With birding there are guide books and established coloration patterns. Business people are more difficult to pin down.