Evidently, the birds were migrating in a storm and mistook the parking lot for a lake surface. There have been myths about ducks mistaking the blue football field at Boise State (Idaho) for a lake, but they appear to be untrue.
Ecological traps are situations in which animals respond to cues, which normally would lead to enhanced survival or reproduction. But, in an altered landscape, those cues can be misleading---leading to the 'trap' of misinterpreting the cue.
A typical example of an ecological trap--birds respond to the density of non-native, cool-season grasses in the spring to build a nest. Throughout recent history, native cool-season grasses were mixed with warm-season grasses and forbs, which provided cover and sources of insects (for food for chicks) later in the season. Early growth of grass would normally indicate an area that would be good for nesting and rearing young. But, where non-native brome grass has overtaken a pasture, for example (wonderful forage grass for cattle), the forbs and warm-season grasses will not 'show up' later in the nesting season. The birds, of course, do not know this, and the situation may result in reduced productivity...hence, a trap.
As my research lab continues to work with habitat selection of grassland birds, we may find more examples of ecological traps. But, none will probably seem as harsh as the reality of crash-landing on pavement.