I have 19 laying hens 4 of which are around three years old and the rest are a year and a half. I hatched three new girls during the weekend of September 12th. Today I got 10 eggs which is the norm this time of year and with them was this little booger- Any way this could be from the fifteen week old pullets or is this a fart egg from one of my older hens? The pullets are two Welsummers and one Welsummer-Maran mix (Rooster is a Welsummer).