Yup! Just another bonus, IMO.
If you used Golden Cuckoos then after some selective breeding you could even have chicks that would be sexable as they hatch! Golden Cuckoo males have a much lighter down color than their female counterparts.
If you used Golden Cuckoos then after some selective breeding you could even have chicks that would be sexable as they hatch! Golden Cuckoo males have a much lighter down color than their female counterparts.