So I have two 6 week old chicks that I still have inside the house in a large brooder. I turned the heat lamp off last night since they’re older and mostly feathered and need to get used to being without it. They didn’t seem to have an issue last night but tonight they have been crying nonstop with no issue to be found. Both are happy and health chicks. I turned the heat lamp on and they stopped. I live in California and the weather is nice outside let alone inside the house, they shouldn’t be cold. Is this normal for them getting used to being in the dark maybe?