I found this in the garden today - SWMBO and I have made a best guess at something round about Blackbird size, but I know there are a number of rather more knowledgeable folks on the forum who might be able to give a better ID.
To give some scale, the optical cube has 2" sides.
Alas poor by John Liddle, on Flickr
To give some scale, the optical cube has 2" sides.
Alas poor by John Liddle, on Flickr
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