Eggs Getting Smaller & another with off color yolk

[Australorp Fan]

Has anyone had a chicken go from laying regular sized eggs to very small quail sized eggs? Also had a chicken lay an HUGE egg with 4 yolks. The yolk had a blue/green tint. These hens are all over and between 1 and three years old.

Any thoughts on what may have caused this? Thanks for your response.

 

[panner123]

Try increasing the protien and give them some osyter shell. That should do it for the smaller eggs. As for the mulit yokes, I have know idea.