Is it normal for an adult hen to lay tiny eggs

[The chicken nurd]

I have one maybe two 1 year old hens who still lay tiny “pullet” eggs it’s not a big deal but anyone have any idea why

Photos:
The white hen I know lays these eggs the other two are suspects

 

[rosemarythyme]

Some birds just lay smaller eggs than others. Could be genetics, or some physically limiting factor. As long as they're otherwise healthy I wouldn't sweat it.

 

[PippinTheChicken]

Some birds just lay smaller eggs than others. Could be genetics, or some physically limiting factor. As long as they're otherwise healthy I wouldn't sweat it.

 

[Sally PB]

I have one Black Australorp who lays juussst into medium sized eggs, ie, 50-52 grams. Her name is Little, because she was the littlest chick. She's not the littlest anymore, but apparently, the name influenced her egg laying. The other two lay 59-62 gram eggs.