Hello, our slightly older hen just started laying (about 7 months old) and her egg sizes vary so much! I have kept her last 6 eggs for comparison. Is this something that will eventually even out or is that just what chickens do? Just curious. 

Join BYC FREE here to see fewer ads, post questions, upload pics, & more! Or visit our Learning Center for articles on How To Raise Chickens.
Those 2 larger ones are double yolkers I'd bet....not unusual for new layers.
They do vary in size, especially when just starting to lay. It can take a month or so for things to get 'regular'...but even older hens can lay different shaped/sized eggs on occasion...part of backyard chickens, you only see the sorted perfect eggs when buying them at the grocery.