As we get further into August, so things at the cathedral seem to have gone relatively quiet though I gather that up to three juveniles (plus both adults) have been seen recently on the tower and on Jurys Inn (thanks Ian B for that information).
The adults are certainly due a rest after such a busy season. Rearing four chicks must take its toll.
Adult peregrines have to moult their feathers annually. This usually begins during or just after the nesting season but there is a good deal of variability apparently.
Moult begins with the primary
(outer wing) feathers and can take between18 and 26 weeks to complete.

I have found many moulted peregrine feathers under the tower over the years as my photo shows.
Meanwhile, the close relative of the peregrine, the hobby, still has y
oung in the nest. This
falcon is smaller than the peregrine and is also a migrant. It spends the winter down in southern Africa, only returning to the UK in May. The whole breeding season is about two months later than that of the peregrine. Hobbies are very fast fliers, taking small birds on the wing but they also love to eat insects. In Africa they follow thunderstorms that trigger the swarming of termites. In the UK, when they arrive back in May, they can be seen at several wetlands hawking insects including early damsel and dragonflies.
Last weekend I helped with the ringing of a brood of

young hobbies
only a few miles out of Derby. These birds select old crow nests to nest in and this pair had chosen one in a large oak tree in the middle of a field of wheat.
The earliest of the young hobbies will only just be making their first flights, with some not doing so
until later in August. By the end of September these youngsters set off south, heading down through France and Spain to North Africa and then on to West and even South Africa.
Apparently at this stage they are unable to catch birds, relying solely on insects for their food.
The photo shows a young hobby about to be ringed
What a different lifestyle hobbies have from our peregrines.....
Nick B (DWT)
The painting of a hobby chasing a dragonfly is by Dan Powell