Where can I find adult hens?*

I'd like to buy a few hens that are already laying so I can get eggs while my chicks grow up, but every "livestock" website I come across doesn't offer chickens and I found one place but it's like $150 a hen. Is that a normal/expected price? I'd like to buy local and there's a farm local to me that claims they sell some but they haven't gotten back to me at all so I'm kind of out of hope.