I am letting a broody hen sit on some eggs and she is in a nesting box about 2 feet off the ground in the coop. It's my first time to let her hatch some eggs and I think I will just let her do it in the coop with all the other chickens and the rooster. 1. I'm guessing I need to make a ramp to the floor so the chicks can get out of the nest. 2. The laying pellets are in a feeder that's hanging from the ceiling. So I need an area for the chicks' food and water- does it matter where it is in the coop? 3. Everyone's out and about during the day, and I close up the coop at night. I assume that the hen will manage her chicks. Right?
Hatching in the midst of the rest of the flock is risky, especially if any newly-hatched chicks venture out from under the hen while she's hatching the rest of the clutch. This exposes the helpless chick to the other flock members, who may kill and eat the chick(s). I recommend isolating the hen from the rest of the flock (but within sight of them) during incubation, hatching, and for 4 to 7 days post-hatch. This gives the hen an opportunity to hatch out the chicks in peace, and gives the chicks time to gain strength and bond with the hen. After this, the hen can then integrate the chicks into the flock.
The chicks do not need a ramp to get out of the nest. They will jump out of the nest to follow the hen, although I recommend a ground-level nest (see above post).
Provide chick starter at ground level for the hen and chicks. The rest of the flock can eat this as well. Provide water at ground level for the hen and chicks, so the hen can teach them to drink.
I don't let hens free-range with their chicks unless the chicks are at least 1 week old, the weather is mild, and the ground & ground-level vegetation are dry. It's very easy for chicks to get chilled when they get wet. Also, if the hen is not really attentive to the chicks, she can wear them out when free-ranging, so it may be wise to limit the extent of free-ranging that she does if this is an issue. As the chicks get a bit older (3 to 4 weeks), they typically have no issues with keeping up with the hen.
It will typically take a few days for the chicks to learn how to use the coop ramp, so you will probably have to help them the first few days. Getting up the ramp is more of an issue for the chicks than getting down.