A group committed to conservation of the endangered predatory birds provides information on the Peregrine Falcon. Information about the role of the SCPBRG in the Peregrine's recovery is given. Volunteers climbed to their eyries and substituted dummy eggs for the thin-shelled eggs and then hatched the eggs in their laboratories. Thanks to these efforts and those of many other volunteers and groups, the peregrine falcon was officially removed from the endangered species list.