Hi and welcome! How many chicks do you have and what kind? Did you hatch them yourself? Welcome to the wonderful world of chickening! I started with 15 from Hoverys hatchery but lost a total of 10 so only have left three isa browns and 2 silver laced
Welcome Agree with Pork Pie.... Check temperature in brooder, make sure that you don’t cover entire area with light.... chicks need to be able to move to a cooler spot if too warm. Check bums at least twice a day.