These look more like the adults but will be missing the final touches that they will require to attract a mate:
Fledgling and juvenile Wood Pigeons will have paler feathering than the adults and will not have developed their white neck band.
The juvenile wood pigeon will have blueish eyes with and oval pupil.
Juvenile Collared Doves will look much like the adult, but will be missing the brown "collar".
The juvenile collared dove will have amber eyes.
Its beak will be a pale shade of brown.
If its tail has developed it will look as if it ends in two featers and will if you look at it from
underneath you will see the underside of the tail feathers are white.
All collared doves will have a similar feather colour which has been described as cream/pale grey/ light brown.
Fledgeling and juvenile Stock Doves will also be duller than the adults and will be missing the bright green iridescent bar at the back of the neck (photo courtesy of Wildlife Rescue.)
They will have a little black bit at the end of the beak and the characteristic "black" eyes.