One of my RSL chickens started to lay about a week ago (medium size brown eggs). Now my producion red has laid a few days (lg brown). Today I found a pullet sized almost pinkish egg. I think it was from another RSL. But of all the eggs I have gotten I have not heard any egg song like "bok bok bok BAKOK". They just sqwaaaalk loudly, which those ones pretty much do most of the day anyway! Has anyone had a similar experience? Will they eventually do the egg song?