surveillance (1) Monitoring (1) Lead poisoning (1) Oxyura (1) Wildlife as food (1) Wetlands (1) Weights and measures (1) Pollution (1) Mortality (1) Meat (1) Lead (1) Heavy metals (1) Fees, Administrative (1) Birds of prey (1) Birds (1) Use (1) Interpretation (1) Malvasías (1) Carne de caza (1) Tasas (1) Estudios (1) Metales pesados (1) Aves rapaces (1) Plomo (1) Intoxicación por plomo (1) Zonas húmedas (1) Pesos y medidas (1) Carne (1) Mortalidad (1) Aves (1)