It had been 4 days since I last saw the tiercel and I had started to think that something was wrong, but I have been at the hide  later in the afternoons this week , was this the reason I hadn't seen him?  I came to the hide even later today, almost as an afterthought and I am glad I did because it was my best session of the season so far.  I witnessed  some totally new behaviour – for me that is -from the falcon. She suddenly arrived on the rock face opposite and I knew immediately that she was doing something a bit different. I saw her make her way  to a cleft in the rock and then retrieve a stashed kill which she immediately started to eat but only for a minute or so before she flew off with it to consume  elsewhere.  I know that Peregrines stash uneaten prey  but this was  exciting to observe for myself. I have seen a peregrine stashing prey before but this is the first time I have witnessed the stash being utilised. With it starting to dim, as afternoon turned to evening, suddenly I heard calling which I haven't heard so much these last few visits, then suddenly, on the ledge, with the tiercel arriving  first were both birds. They were both calling the scream call and they bowed and nodded to each other before the tiercel flew off leaving the falcon on the ledge alone, calling to him plaintively. After no response she went  in to the nest hollow and carried on calling. She  started to brood either an imaginary clutch of eggs or otherwise, but going through the motions nevertheless.  Well what an outcome.  At first today I was thinking all sorts of negatives and by the end of the session it turned out to be as positive as it could possibly be!