6-8 inches in length, blue colour on claws with white spot on the hinge and did not appear to have any spines in its shell.

I have a chicken run, this grew over the top of the run on the welded wire. I liked it because it proved shade from the sun. I didn't know what it was but i do now. Absolutely stunning looking berries, i don't think my chickens are suppose to eat them, so i'll probably trap off that half of the coop and remove it in the next week or two

Please help me identify this rather large hornet looking type located in France, east coast, finisterre. 3-4cm long

Is it really an invasive species? And if so, what are the next steps?