Step 1
Place the chicken in a saucepan and cover with 2-3 cups water. Add bay leaf, thyme, peppercorns, cloves and ½ teaspoon kosher salt. Simmer for 30 minutes, then remove chicken and cool. Shred chicken with your fingers, discarding chicken skin and bone. Strain broth and reserve. You should have about 2 cups shredded chicken.
Step 2
Put olive oil in a skillet over medium heat. Add diced yellow onion, season with salt and cook until softened and a lightly browned, about 5 minutes. Add garlic and cumin and cook for 1 minute more. Add chopped chipotle chile and adobo sauce and stir to combine. Add shredded chicken, salt lightly and stir to coat. Add chicken broth and simmer for 2 or 3 minutes, until sauce has thickened somewhat. Keep warm.
Step 3
Heat the tortillas in microwave or briefly in a frying pan, keeping them soft and pliable.
Step 4
Assemble the tacos: Put a spoonful of the saucy chicken in the center of each tortilla. Top with a teaspoon of chopped white onion, some radish and avocado slices, a teaspoon of queso fresco and a teaspoon of sour cream. Add a few cilantro springs. Serve immediately with lime wedges.