Call your local Human society or ASPCA
If they kind of push you off like nothing, don't take it personal they have a lot of horrible things they deal with every day, don't give up. Call the Human society of the United State (if you are inthe U.S....I didn't even think of that tell now)
If you area has any type of Farm rescue like Sasha Farms or Farm sanctuary call them, even if it doesn't E-mail Farm Sanctuary they may be able to point you to the right people for your area.
You can report them to the Department of Agriculture, or department of health or simply to a city offical.
Those baby chicken are depending on you for help, and so are the countless other baby chickens that may some day go through that door if the place stays open.
This is Animal Cruelty it's inhumane and it should not be allowed. And it is against the law.