The chicks have only been hatched since the beginning of the month and look how much they've grown in such a short space of time. This week, having realised they are proper little birds with wings and feathers they are doing their best to fly (see video at the bottom of this post).
Learning how to find food.
Look we've got feathers and everything.
Some are blue.
Just as Tardis gets them all nicely lined up one wanders off.