Our Front Door Is Temporarily Off Limits

The Wife went out to water the petunias on the front door entryway and discovered this in one of the planters:

A dove in the oven.

The nest and egg is a mourning dove egg.  We have seen her sitting on the nest and we have declared the front door closed for use until it hatches.

Mourning doves are not new to our house but this is the first nest in a potted plant.