I am a NOT a vet, always consult your vet before giving any medication. Below is what WE use here with all of our birds. I will not give a schedule for giving during the year as each persons climate and conditions are different. ALWAYS have a fecal test run to know what you are dealing with. 1.) 1/2 cc of the liquid topically on the skin for an adult chicken. 2.) 1 cc. for adult geese, put it between their wings. when dosing think of it like applying frontline on a dog ALWAYS have your vet check a fecal sample to see what kind of worms they have if any first. No sense in deworming if there are no parasites present.