I havent used one so I cant say for shure but I would asume it would be like any of the others in that they can do duck and goose eggs and quail and all that but in diffrent amounts. more button eggs then chicken more chicken then duck ect. Good luck
It is really good for ducks. Since duck eggs have to be on its side and rolled so it is actually perfect and Ideal for ducks!!!
Edit: I Have a digital r-com 20 for sale!! I have 4 incubators.. 1 is extra so I am selling it. In perect condition and free New sponge. 375.. Original box, still has the original front..(I never removed it) and Free shipping I paid a lot more for it but I would like to sell it to some of my BYC friends for some space.