egg sizes

[mrz hen]

So iv got 4 lace hens and 2 isa hens. All laying however im not 100% sure which is laying what egg. But when i brought the lace hens i got told their eggs are large in size and so far i have been getting 2 large eggs a week. Does that mean not all lace hens are laying or do they start laying medium size eggs then large because i caught one lace either just laid an egg or was sitting on it making that song ' ive just laid'
Help.

 

[cliffoco]

Look up your ISA hen on the website, it will tell you the average size. Are they young still? I know my ISA Babock (brown) are laying small eggs still they should slowly start getting bigger

 

[mrz hen]

The isas are about 7months old
Lace 10months