@TudyBOT, can you explain why, when entering a calendar contest where the pages are printed on 11" wide by 8.5" tall paper, that people should not enter pictures that are 4000 pixels wide by 6000 pixels tall?
The amprolium dosage for ducks is the same as it is for chickens. You can read about doses in this article by @casportpony here:
Safely Administering Oral Medications to All Poultry and Waterfowl