Can you tell me who laid this egg?

[Over_Easy47]

I have ISA browns, white rock, and salmon faverolles in a separate pen as they are young, but I found this pretty little egg today not sure from who. Any guesses

 

[Cyprus]

By breed purpose alone, I would venture to guess the ISA brown. Who has the reddest comb?

 

[TheOgdensmenagerie]

I would say your browns.

 

[Over_Easy47]

Reddest comb - ISA Brown & it sure enough was her! Caught her in the laying box in the right position today, waiting for an egg

 

[Over_Easy47]

And another today! White rock? Salmon faverolle?

 

[aart]

Perfect time, with a group of pullets coming into lay, to start exams:
https://www.backyardchickens.com/articles/who-is-laying-and-who-is-not-butt-check.73309/