The thing about turtledoves is, they're quite rare. The reason for that is that male turtles find it very hard to mount doves. They just can't move fast enough. Then too, male doves seem unable to deal with the logistics of impregnating a female turtle. "She just won't come out of her shell!" is a common lament of the frustrated male dove, who can be seen jumping around desperately on the shell of a female box turtle while she placidly grazes. Nevertheless there are some turtledoves around, which proves that it is possible. No one has yet confirmed just how it is done or which way around.