Derby Cathedral Peregrine Project:

The eyases are 10 days old already. How time flies. They are covered now in their second down. The remiges and retrices have started energing. You can see that in teh 2 eldest eyases. The pagatium is growing and turning the arm into a wing.
The eyases are now able to regulate their body temperaturen. However they will still try to make the 4 as one body, and will keep on doing that. By sticking close together with their bellies touching they can exchange bodyheat. This makes it much easier to remain the own body at the right temperature.
They are very sweet chicklets, with the little own catching up on his siblings. It is fun to watch these 4 cuties!