I have americaunas, black stars, buff Os and a Brabanter. All are 22 weeks, several have VERY red waddles and combs but none are laying! I am in Texas and it is hot, but I've got shade cloth up, a fan going from 11-11 and a mister from 1 - 6 pm. They have a nipple system for water and a spare gallon jug I refresh daily just in case. They have been on layer feed since 18 weeks. When do I start to worry?