Do you have any dog or catfood? If so, wet the food so it’s mush. Then see if the duckling will eat it. This isn’t a permanent solution to the feed. Or maybe try tuna smushed up. But it should get you but until you can get poultry feed. Can you ask your Dad if there are feed stores anywhere near you? If so, and you want to private message me some towns in your vicinity. I call them and see what kinds are available to you all. Or you can do a google search for feed stores. Try to get the duckling to eat something soon. And the duckling crying for you is normal. It is imprinted on you and thinks you are it’s Mother.