On Fri, 8 Jul 2016 07:48:16 +0100, "BobHobden"
wrote:

On a Facebook group a couple of people have suggested they are Hoverflies.

Hoverflies are nothing like bees. They are a different shape to bees.
It's unusual to see more than one at a time.

Steve

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Neural Network Software for Windows http://www.npsnn.com