Do I need to help?

[Fowl Mouthed]

This baby has been trying to hatch since yesterday. The mom has left the nest and the egg has gotten cold. Do I try to help? I'm afraid it's going to die

 

[chickenlittle21]

You should. Here is an article on how to help:
https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/