A dove in her nest in the joint of a rusted pipe

We watched a pair of doves build a nest in the joint of a rusted pipe outside our window. They were not more than 15 feet away as I cooked, ate, and studied for the bar exam.

This morning I saw that the female dove had laid an egg and was sitting on it, the egg kept in the nest more or less by friction and little else. I took this photo. You can see the little white egg.

Later today the doves were gone, and the remains of the egg were on the pavement below.