Alanna Cilbrith of Lebanon Public Works installs sonic bird deterrent speakers on light poles on the pedestrian mall in Lebanon, N.H., on Friday, Feb. 7, 2025. The city is trying to prevent a murder of crows from roosting along the mall and in Colburn Park, where a second device will be installed. The speakers activate and emit a variable high pitched sound when street lights turn on at night. “I picked the least obnoxious noise,” said Assistant Public Works Director Rick Brown. Frequently wiping up bird feces from hand rails on the mall has become impractical in the winter weather and a previous attempt to scare birds off with a laser was unsuccessful. (Valley News - James M. Patterson)
Alanna Cilbrith of Lebanon Public Works installs sonic bird deterrent speakers on light poles on the pedestrian mall in Lebanon, N.H., on Friday, Feb. 7, 2025. The city is trying to prevent a murder of crows from roosting along the mall and in Colburn Park, where a second device will be installed. The speakers activate and emit a variable high pitched sound when street lights turn on at night. “I picked the least obnoxious noise,” said Assistant Public Works Director Rick Brown. Frequently wiping up bird feces from hand rails on the mall has become impractical in the winter weather and a previous attempt to scare birds off with a laser was unsuccessful. (Valley News – James M. Patterson) Credit: Valley News — James M. Patterson

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