We lost one to a fox several days ago...and have not gotten another greenish-blue egg since! I assumed she was laying medium-brown eggs like the other three Black Australorps.
We had 14 hens and six roosters until earlier this week, when a fox managed to get one of the Black Australorps, and the two Buff Orpington roosters that went after him, trying to protect the hen. All that was left were scattered piles of feathers, and oddly, Letitia's tail and the broken egg she was close to laying when she was taken. (It was still white, it hasn't made it that far down her oviduct).
Here's the breeds I have/had:
4 Black Australorps (from TSC) (now 3 left)
4 Golden Comets (from TSC)
2 Barred Rocks (from TSC)
2 Easter Eggers (from Murray McMurry hatchery)
1 Golden Wyandotte/Easter Egger (McMurry also)
1 Bantam Cochin
We had been getting 10 - 12 eggs a day on average, as many as 13 in a day. They were various shades of brown, plus we got a white one about 4 or 5 times a week, and a greenish blue one about 3 to 5 times a week. With three EE's I thought Rachel, who has white ears was producing the white one, one of the EE's was laying the greenish blue one and the third, just a regular brown one.
I was very surprised the greenish blue eggs stopped after losing Letitia. So it must have been her, after all, instead of one of the EE's!
Just figures, a fox would manage to grab my only hen laying greenish blue eggs.
But bow can this be? She looked just like the other Black Ausralodps.