This is a mother dove who lives in the parking deck on the way down the staircase on the second level.
It was originally a Robin’s nest. It was many many many a year ago but I remember when the Robinson Family was making it for their baby eggs. Then they left for the winter and the Dovey Family moved in and have used it every year since for baby dove production. They don’t even tidy the place up. At least I have never seen them bring new twigs or fine sewer rat hair rugs up. They just squat down on the same ol’nest every year and push eggs.