Grasshoppers singing in the autumn

I recorded these very vocal meadow grasshoppers communicating with each other yesterday. The noise is called stridulating and is caused by the males rubbing their legs against their wings.

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Meadow grasshopper
A meadow grasshopper

Meadow grasshopper
Note the short wings and black knees in this female.

Grasshoppers and crickets will be active until the first frosts come so they should be out and about during September and into October