Shit!! I just chased a stray cat away from the mourning dove nest. I don't know how long it had been in the tree or if it had reached into the nest. From what I could see it didn't have a bird in its mouth, but I don't see the babies. Hopefully they flew away already. I know momma bird was starting to spend less time with the babies; if I don't see her returning to check the nest maybe that means the cat reached an empty nest.