Dex, I saw no response to your request, so I will venture mine. There have been breeding pairs in DC in recent years, and individuals are not unknown on the Mall. I see a Peregrine here about every other year, usually during some time from October to March. I haven't seen any being mobbed; generally they are just scaring the pigeons to death! Jim Jim Felley Smithsonian Institution irmss668@sivm.si.edu