They love meat, especially cooked meat - as do common wasps. I remember visiting my dad in Berlin one summer. We'd barbecue and have dinner on the balcony of his flat, and leave the carcasses or bones out on a plate. read more
Where most bees like sugary things, hornets are a bit more omnivorous. They'll happily chow down on meats, from your picnic selections to roadkill. They're not particular about chicken. Hamburgers are equally attractive. read more