One foggy night hundreds of warblers and red-eyed vireos crashed into the tower. Their bodies fell on to the sidewalks - and passersby - below. Some pedestrians picked up those that had been dazed but not killed and tried to revive them with food from nearby delis. It was found that cloud-diffused light tended to disorient birds and to lure them into fatal collisions with the building. Since then the [P 007 / floodlights for the top 30 stories] and the massive fluorescent panels of the tower are extinguished on cloudy or foggy nights during the wildfowl migratory seasons.
