Q. Where did the "wild" peacocks in PSL come from?

A. They are not technically "wild," but escapees from private homes and ranches. They were brought in as decorative pets before at least the 1980s. A woman who lived near what is now Veterans Parkway is believed to have raised them as a hobby. At one time, there were "Peacock Crossing" caution signs near Lyngate Park. Then-Police Chief Hank Schlesselman had declared them a traffic hazard. This followed his deciding not to "destroy them" after objections from the public. Around the same time, peacocks were known to visit the nearby town houses in Rivergreen Villas and peck on the sliding glass doors. They apparently saw their reflections as rivals.
Others were kept at ranches in the western part of the city, such as Becker's Ranch. I'm personally acquainted with these two PSL sites, but there may be others.
Singer Frances Langford, famous for her WWII tours with Bob Hope among other things, was known to have some on her estate on Indian River Drive in Jensen Beach. These, however, may not be the source of PSL's peacocks.
-- PSL Historical Society volunteer