I have a pair of diamond doves. About a week an a half ago one started the good 'ol bow coo and mounting the other. Then he sits in the nest and makes a CONSTANT low pitch noise. Whenever he's not sitting in the nest making constant noise, hes on the ground doing his bow coo. Honestly, its getting a little obnoxious. I was just wondering how long this will go on? Until the one lays eggs? I'm assuming. But WHEN WILL THAT BE? Why is it taking this long?