A car-sized Pret chicken wrap with a whole “frankenchicken” stuffed inside, feathers and all, has appeared outside Pret A Manger in Oxford Circus. It marks the start of animal welfare charity Anima’s week-long tour of 15 Pret cafés throughout the city. Pret is the target of a £1m public campaign as a response to the high-end café chain breaking its commitment to stop selling fast-growing chickens by 2026. In 2018 Pret promised to stop selling fast-growing chickens by this year. It has now delayed that to 2032 and not switched a single bird to a slower growing breed. Connor Jackson, chief…