I had an out of body experience when I got my new incubator (BD present from my son and his wife) and filled 'er up...the egg turner holds 42 eggs and I figured like no way will they all hatch so whatever I get will be fine, even if it is only a few...weeeeelllll...38 of them hatched! I had ducks coming out my ears like forever...I was really surprised...I have been fortunate in that most of my hatches have been almost that good...