The definition of intact is something that is  complete and that has not been damaged in any way. An example of intact is a 36-piece set of military figures that has not been broken.
Mourning Doves sit on their eggs for about 2 weeks, feed the babies in the nest for about 2 weeks and then care for their young for about a month after they've fledged.
The second egg is laid from 20 to 40 hours after the first. Baby doves need help to hatch, so the father dove takes the egg a short distance away from the nest and drops it. The young doves grow quickly and leave the nest between 12 and 14 days of age. They are independent from their parents at 20 days of age.