– by Nick Brown. Derby Cathedral’s peregrine pair have nested successfully since 2006. They have since been watched by thousands who have followed their fortunes via webcam from all around the world. These falcons have eaten only one mammal in all that time (as far as we know) but are gourmets when it comes to choosing which birds to eat. Nick Brown explains how it all began and what insights have been gained into facets of this spectacular raptors life, usually unseen by all but a few.