There's definitely a change in behaviour today (Friday). It was quite a while before I even heard a Peregrine let alone saw one today. Then suddenly I heard one, then two calling close behind me. It was good to hear them because I had almost started to worry for their safety. Then just to reassure me further, one of the young females landed on the branch in front of the hide as you can see, she flew off and then came back to the same place 30 minutes later, staying then for just a short while. Occasionally I heard peregrines calling quite a distance away and then there was another calling somewhere to my left and much nearer so it seems as though everything is fine but they are definitely keeping a low profile today. I am going to have to cut short my session soon because of a dental visit but I managed some nice photographs such as the example above.