I suspected the doves have some internal clocks that tell them when the rotation would happen, which happened yesterday around 9:15 A.M. This morning I camped out by the window since 7 and the rotation occurred around 8:45. Alas I didn’t have the camera ready to catch the birds together. It happened quickly, one came in the other flew away, no peck on the cheek, no “Catch you later, honey”.