I got home from work last night and I went to the coop to collect the eggs. I was hoping to have 3 nice eggs. 1 green from the Americana, one brown from the RIR and one cream colored from my mutt RIR. They are all about 5 months old now and they started laying this week. Well in the nest box there were 3 eggs. One green, one brown and then to my surprise there was a second small brown egg in there. It was a different shade of brown from the other so I am pretty sure it was from a different hen. Then in the opposite corner of the coop I found the larger cream colored egg. 4!!! Now, I do have 3 other females in the coop but they are just 2 months old. I think it may be a bit early for them to start laying. Then I got thinking. I have a 5 month old Swedish Blue duck who also shares the coop at night. She has been entertaining the rooster often so maybe this cream colored egg is actually hers and all this time I thought it was coming from a chicken. It is a little larger than the other chicken eggs. This would mean that my 2nd RIR may not be a mutt and was just a little later to get started laying. Anyone know a good way to tell if this is indeed a duck egg? This picture is her very first egg. They are a little larger now.