The crickets are going mental tonight.
A friend has recorded them at 88 decibels, the same as a motorbike.
Above is a little something to confuse them in the form of a recording I made.
Below is my own recording of 91.
According to Yahoo that’s equivalent to:
a police whistle, heavy traffic, truck traffic, noisy home appliances subway-rail train, pneumatic drill [or hammer] at one meter, walk-man ear phone [average volume], rock drill at 100 feet, some motorcycles at 25 feet, shouted conversation.