whose eggs are these?

[Gabbychickens]

The 4 larger brown are from my isa. At least 2 other birds are laying the smaller pinkish ones. I have 2 rir's and 2 barred rocks that should all be the right age. I have 2 ee's but they are 2 months younger than the rest. Any idea who is laying the pinkish eggs?

 

[Gabbychickens]

My lighting wasn't great I guess. The smaller ones look more pink than brown when you look at them.

 

[boyswillbeboys]

my RIR lays a medium brown egg, I don't have Barred Rocks, but my isa brown eggs range from dark brown to a pale tan, with a pink tinge