Since I’ve never seen a duck un DR, I asked Mr AE. He suggests going to Mercado Modelo in SD, large Mercados in other cities, they have cages with live ones. He’s even seen them in large agrovets, he goes to one in San Cristobal that has them live, he even saw pheasants there last time. He said he’s sure you’d find them in Villa Mella too.
Where are you located in DR?