This morning at about 8:15am, as I passed the margin garden on Park Terrace West, I saw a three to four foot long black snake fully extended among the plants. The snake looked healthy. After informing the other Volunteers about the siting, Steve sent a link to a photo of a Black Rat Snake http://www.esf.edu/pubprog/images/snakes/blackrat.jpg
Also here is a link to a fact sheet about such snakes:
They are non-venomous and good for rodent control.
So we hope no one tries to do away with it, as we benefit from its assistance with controlling rats and mice.