I just candled the 30+ 1-week-old call eggs I had in my incubator, and only five have developed. This happened last batch also, except not as bad. After doing some eggtopsies, I'm finding half of the yolks disintegrate after cracking open(does that mean slight development before dying?), and the ones that don't have no bullseye and appear infertile. I have three females and two drakes, although one is older and has a harder time getting around, so I suspect his breeding days are over. The fertility rate seems to be dropping as the laying season progresses, which doesn't make sense. Do I just need another drake? Or does two drakes cause fighting/competition which = infertility? What am I missing/doing wrong? The incubator(Hovabator) is brand new, and holds temp/humidity well. I don't wash the eggs, so they are fairly dirty...Not sure if this is an incubation problem( so sorry if this post is in the wrong place).