Gives us an idea of what we would be looking at if ours had nested on the east again.
I think this site is a little different from the ledge - it's much higher up, on the 51st floor of the building. Also, although you can't see it in the webcam pic, there is actually a lot of space around the planter for the chicks to run, flap their wings, strengthen their muscles and attempt short flights before they are ready to leave the balcony. I used to have a pic of this, but can't find it at the moment.