I recently purchased some EE eggs at a local auction. They said were Auracanas but I know better and bought them knowing what they were but what I didn't notice is that there were three duck eggs in one of the cartons. I didn't tell my DS because he is crazy about ducks and didn't want him to get his hopes up if they don't hatch. My question is how can I hatch them in the same incubator as the chicken eggs? I don't know what type of duck eggs they are and I thought duck eggs need higher humidity to hatch. I only have one homemade incubator and buying/building another for three eggs is out of the question. Any help or suggestions would be appreciated.