Do chicks need additional warmth?

[samsnonna2048]

I have a broody hen with 6 eggs. They are due to hatch 9/27. I live in PA and the nights have been getting cooler. Will I need additional warmth for her chicks when they hatch or will Mamma's heat be enough. This is her second time broody with chicks and she is a great Mom.

 

[MarkJr]

Momma will be plenty especially if you provide a well insulated box out of drafts. 3-4” of hay will work wonders.