Prepare the Wild Rice: Rinse the wild rice under cold water. In a separate pot, cook the rice according to package instructions. Drain and set aside.
Cook Chicken: Add diced chicken, chicken broth, water, carrots, celery, onion, garlic, bay leaf, thyme, rosemary, and sage in the large pot over medium heat. Bring to a boil, then reduce heat and simmer for about 20-25 minutes or until the chicken is cooked through.
Create Roux: In another saucepan, melt the butter over medium heat. Stir in the flour and cook for 1-2 minutes until the mixture turns golden brown. Slowly whisk in the half-and-half until smooth. Cook and stir until thickened, about 5 minutes.
Combine And Simmer: Add the cooked wild rice and the creamy mixture to the pot of chicken and vegetables. Stir well to combine. Season with salt and pepper to taste. Let the soup simmer for 10-15 minutes to meld the flavors.
Serve: Remove the bay leaf. Ladle the soup into bowls and garnish with fresh parsley for a delightful finish.