you dont honestly believe the company doing this will give out the correct result especially when the have a perigrine box on their building that breeds young every year i have been watching this webcam for years and when there are four big young in the nest they bring about four or five homers a day they also say they give the rings found to the rpra every year, they have not cleaned out the box this year i see the pair starting to prepare the nest site on the old gravel from last year i wonder why