Olive Egger lays different egg?

[upstater]

Last winter my hen hatched an egg from a BBS Blue Amerucauna Rooster and a Welsummer hen. The hatched hen started laying an Olive Green egg this spring but every other time it has speckles on it, is this possible? I’ve heard a hen lays the same egg each time so I’m confused, I have no other chicken laying an olive egg. I attached a picture of the eggs. Thanks!

 

[Tookie]

That's completely normal and is very possible.
I've had a hen lay eggs with speckles, and some without.

 

[aart]

Olive eggs can vary quite a bit from day to day.