Monday, June 17, 2019

Are mayflies about to swarm the Susquehanna once again? - pennlive.com


Those swarms are likely just days away, and the Columbia Borough Police Department probably will soon announce that the streetlights on the Columbia-Wrightsville bridge over the river are being shut off to dissuade the mayflies from gathering there.

MORE:

https://www.pennlive.com/life/2019/06/are-mayflies-about-to-swarm-the-susquehanna-once-again.html

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