anyone else have a green egg layer then laid a blue one?

[blueheaven]

my 2 year old EE hen always lays green eggs. however, after giving her a little DE she laid a real pretty blue egg. it was smaller, but it was blue...strange!

 

[LeadHead]

One of our 2 year old Rhode Island Reds apparently began laying white eggs about a week ago. It's the oddest thing! I just posted a topic about it about a half hour ago titled "Rhode Island Red suddenly laying white eggs????" and then saw this post of yours.

 

[blueheaven]

now that is strange!!!
i can see green going to blue, but brown to white.
my RIR eggs just started getting longer and a bit bigger this week.