At around 5:00 today, there was a flurry of activity around Westlake Center. Not people – birds. There had to have been thousands of birds swarming between the buildings and trees, their bird-chatter louder than the sound of the rush hour traffic. For a moment, a group that took flight from the top of the Westin Hotel flew together in formation – the shape of a perfect arc, matching the curve of the cylindrical tower they’d taken off from. Then they scattered back into chaos.