I just read this:
> Many beekeepers listen to their hives to ascertain the state of their honey bee colonies because bee buzzing carries information on colony behavior and phenology. Honey bees generate specific sounds when exposed to stressors such as failing queens, predatory mites, etc.... While experienced beekeepers can tell audio changes in sounds produced by stressed colonies, they may not always be able to determine the exact causes of the changes without hive inspections.
My question:
Who among you is "ascertaining the state of their colonies" by listening to them?
reference:
Vladimir Kulyukin, Sarbajit Mukherjee and Prakhar Amlathe
Appl. Sci. 2018, 8, 1573; doi:10.3390/app8091573
www.mdpi.com/journal/applsci
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