If that is a stink/shield bug, and not some foreign lookalike...
Watch out, they're juice suckers and can do a lot of damage to fruit.
Ages ago, I didn't realise the bugs in my garden were stink bug nymphs-they look really different-
until the sods all turned green and sucked my tomatoes dry!
The 'stink' part is very effective-I've never seen birds eat them.
Sensible birds: ate one by mistake as a kid, and the smell still makes me a bit queasy.