baby dove alone at night

Its late night and the mother nor father has returned . I got worried about the chicks cause they look so young so I took them inside. They can open their eyes and I uploaded a pic also. Is it normal for the parent doves to leave their small chicks this age like that ? What should I do :( ?

Hi all. This is my first post. I have a nest on my kitchen window sill. A pair of doves successfully reared two babies about six weeks ago. Another two doves were born fives days ago. One of the babies died on the second day. I have not seen the female dove since then. The male dove is...