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Article updated: 8/5/2011 12:17 PM

Why this summer's cicadas are noisier than usual

Cicadas loudest during day, crickets and katydids at night

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This summer's cicadas have been louder than normal, entomologists say. Cicadas are noisiest during the day, and the crickets and katydids take over in the evening. The early evening is the loudest time because of the overlap.

Daily Herald File Photo/Bev Horne

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Every night across the suburbs, you hear them. Oooo-eee--ooo. Ooo-eee--ooo. The cicadas, crickets and katydids have been unusually noisy this summer, and you have the heat to thank for that.