Aussie Finch Forum

No, the SFYB cock mated to the RH hen will produce yellow-backed hens & green backed cocks.

I'm a little late with an observation but if the red headed hen was a Single factor YB as suggested it would be a visual yellow, because it's white fronted.

They just look like two recesive WF/G Backs to me, if you mate them to normal cocks you wil get all PB/G Backs split for white front.

Alistair.

It was the RH cock which was suggested to be SFYB, not the hen.