I'm also new to raising chickens and was wondering if anyone can tell me a way to know how old your chickens are. We rescued these chickens from a production farm and was told they are 15 months old which should make them in the peak of their egg producing but out of 37 chickens I'm only getting some times 10 eggs a day. I was hoping for at least 2 dozen a day. Our temperatures have been inconsistent within the last month. We've had some cool days and then the next day it may be in the 90s so we have put fans in the coop to be sure they are cool. Any help to know how old they are would be greatly appreciated.