The person I’ve seen do it took food coloring on a toothbrush and brushed it through their silkie’s hair.Like said, you shouldnt do it for fun or anything. However there would be different ways people could
first off, theres dying chicks in eggs by injecting dye. definitely sad if your doing that for fun or for selling, id only do that if you had a purpose to do so.
then there is dying different ways, mostly people dunk them in a dye bathe and it stresses them out, others rub it on them and some spray it on. it depends
ps. Not sure about ducks, reffering to chickens/chicks here.