Patridge bantam chicken poorly foot?

[Angels4]

The girls are getting older, and thier combs and wattles are bigger and more red than when they first arrived. However it appears they only have wattles on one side of the neck. Could that be possible, or is it normal for one side to become bigger?

[Egluntyne]

Perfectly normal.

[Angels4]

I thought it must be as they are eating, drinking and carrying on like they haven't a care in the world. Egluntine, they are getting so much more friendly since I've been stroking them and taken them out the egg port once they return to roost. Thanks for your expertise.