1.Place spatchcocks on a flat surface, skin side up, and press heavily onto the breastbone until the breastbones to make 8 flat piece.
2.In a baking dish, combine oil, chopped thyme, garlic, lemon and lime zest, and honey in a baking dish. Season to taste. Add the spatchcock pieces to dish in a single layer, turning to coat well. Marinate for, 20 minutes at room temperature, or chill overnight.
3.Meanwhile, preheat a char-grill to medium. Cook spatchcock pieced for 10-12 minutes each side until cooked through, brushing with any remaining marinade.
4.Scatter with extra thyme sprigs and serve with lemon and lime wedges and mixed salad leaves.