(LANCASTER ONLINE) — After several weeks of citizen complaints about late-night booms, Lancaster city officials Thursday restricted the hours that Park City Center can set off its propane cannons that ward off crows.

The wee-hours detonations, which reverberated across the suburbs up to several miles away, were blamed on problems with timing devices on new cannons.

Mall officials apologized and said they would comply with the 3 p.m. to 7 p.m. time frame for firing the rooftop cannons.

The permits for the cannons previously had no time restrictions.

“If you live within earshot of these cannons, you’d know how disruptive to one’s sleep they can be,” said one exasperated East Hempfield Township resident who lives just outside East Petersburg, two and a half miles from Park City.

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