Anyhow, I was able to observe the Peregrines a few times yesterday and BOTH were out of the nest box (but not for long durations). The male was in his favorite place and the female was at the corner of the ledge where the nest box resides. I observed for about 10 minutes or so as the male would take off from his ledge and fly around in a circle only to return to his favorite spot. The female would watch this intently and finally she took to the air and did a semi-half circle before landing on her own corner ledge. They sat their silently the entire time as I watched in confusion wondering why one of them wasn't on the eggs.
I went back upstairs to my office and emailed a local bird expert in my area who is very familiar with nesting behaviours of various bird species and he sent me some valuable information and told me to keep my eye on them this week which I have been doing. I am happy to report that I did not see them both out together today at all. In fact, both appeared to be in hiding up until 2 o'clock today when the male went to his favorite spot. There was no sign of her at all.
Right now its wait and see I suppose. Keep your fingers crossed everyone and I will post more when I get more info.