Barbecued Duck Quesadillas with Lime Sour Cream

Name: Barbecued Duck Quesadillas with Lime Sour Cream
Ingredients: 2 whole boneless, skinless duck breasts; 1 lime, juiced; 1 cup sour cream; Salt; 1/2 tablespoon canola oil; 1 small onion, cut into medium dice; Freshly ground black pepper; 1 cup your favorite smoky barbecue sauce; 8 flour tortillas; 1 ripe mango, peeled, seeded, and cut into thin strips; 1 poblano chile, roasted, stemmed, peeled, and cut into thin strips; 1 small red onion, cut into thin rings and grilled; 1 cup grated jalapeno jack; 1 tablespoon chopped fresh cilantro; 4 sprigs fresh cilantro