A nice bit of squirrel: should we chow down a diet of invasive species?

Last year, the Shambala festival made headlines by going meat-free. This year, it relaxed the rules for a feast of grey squirrel skewers and crayfish. Should the rest of us follow suit?At Shambala festival, during the hottest bank holiday on record, peace and love is about to turn sour. I am standing next to author Louise Gray, who is here to talk about wild alternatives to mass-produced meat. The cricket brownies are baked; we have been skinning squirrels and marinating them in satay, then deci