The eggs were only one ounce when they started laying and now are 1.5 to 1.7 +/-. Not sure how much the hens weigh but they are pretty small. I think they are likely to max out in the 1.7-2.0 range... My goal is to have birds that lay eggs of at least 2.25 ounces or larger. Nothing smaller than 2.0 ounces. I've had some of my ameraucana's start with 2.2 ounces... that's getting it done in my book!
The eggs are in the large range now. 2.25 is extra large.
Size Mass per egg Cooking Yield (Volume)[2]
Jumbo Greater than 2.5 oz. or 71 g
Very Large or Extra-Large (XL) Greater than 2.25 oz. or 64 g
Large (L) Greater than 2 oz. or 57 g
Medium (M) Greater than 1.75 oz. or 50 g
Small (S) Greater than 1.5 oz. or 43 g
Peewee Greater than 1.25 oz. or 35 g
The problem with Xtra large to jumbo egg layers is that they lay less eggs. I am sure my Blues are laying bigger egg that that and they are 7 months old so the mites may have slowed their development. The eggs will get bigger until the molt and then bigger again after the molt.