I'm hatching cayuga ducks and noticed that one of my egg's air sac has gone dark. Candling shows nothing - just darkness. The egg was doing well yesterday so this happened overnight.
They just hit day 25 so they're due to hatch in 3 days.
Any help would be much appreciated
They just hit day 25 so they're due to hatch in 3 days.
Any help would be much appreciated