egg laying age for Africans?

[outnumbered by birds]

At what age do Africans typically start laying? I have my five month old geese in the same pen with my 25 broilers and someone is laying white eggs. The first one was quite large (could be a double yolk chicken egg), but they have gotten smaller (regular chicken size). It is possible that a hen got mixed up with the roosters or could these be small "starter" goose eggs?

 

[Kim65]

The geese are definitely not old enough and it is the wrong time of year for them to lay even if they were old enough.

One of your 23 hens is coming over and laying an egg, for her strange chicken reason, in with the geese. Who knows what goes through their little brains

it's pretty funny, actually

 

[outnumbered by birds]

Thanks for the information. I really did not expect goose eggs until spring, but that first egg was huge and it was my first white one. They are sneaky aren't they. I found a nest of 22 eggs in my compost pile today. I was wondering why production fell lately. Now to find that mystery hen...