Why arent my chickens laying eggs now

[takoda]

My chickens [I have 19 of them ]have not been laying many eggs for a while now. we have had 2 eggs in 3 days. We were getting more in the winter. I live in western PA where it has been very warm over past 2 weeks. Is it the abrupt change to weather?? Please help me to understand why. 11 of the hens are 2 years old and 8 are 1 year old.

 

[Judy]

My first guesses would be they are laying in a hidden nest or a predator is eating the eggs. If there is some new stress, this could be the problem.

https://www.backyardchickens.com/t/423023/why-arent-my-chickens-laying-here-are-your-answers