Dating egg growth based on air cell?

Discussion in 'Incubating & Hatching Eggs' started by MamaMarcy, Dec 18, 2011.

  1. MamaMarcy

    MamaMarcy Songster

    Aug 28, 2011
    Snohomish, WA
    I have 8 muscovy eggs laying on their sides of unknown gestation (abandoned clutch). The quacks inside do not look big enough to hatch just yet, but I'm trying to figure out when lockdown should be. Sometime between yesterday and today their air cells started slanting...which I hear happens close to lockdown...any ideas?

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