After a short visit to the Great Blue heron rookery in Methuen Wednesday morning, had a chance to also make a brief visit to observe the peregrines.  While parked on Mill St. and facing south, one of the peregrine chicks flew by my left side and onto an upper ledge of the white building just below the roof.  This is the first fledge flight activity in my observations.  Hooray!  This morning’s visit was more exciting as one of the chicks was seen on a perch atop a nearby building.  Other reports came in during the day indicating some of the other chicks have fledged as well!  All great news!!