Chicks hatching - mother now left nest after only a couple hatched

My parents have a broody sat on 8 eggs.  As of this afternoon, two have hatched but the broody is now off the nest and brooding the two hatched chicks, leaving the rest of the eggs untended in the nest.

My dad has just rung me wondering what the best course of action is.  I don't really have any idea but I knew a good place to ask - so here I am!  Does anyone have any advice as the best course of action my dad can take (or not as the case may be).

Thank you for reading.

what you need is a small box, big enough for her to sit in ONLY, this will make sure that she doesn't move around and that the remaining eggs are kept warm, also keep her in relative darkness this will keep her more calm. hope this helps

This happened with ours earlier this year.  Unfortunately hens have a time window of about 24-48 hours where they will accept any hatchlings, after this they are off the nest and won't accept any more.  If you cant find an incubator then your best bet is to put them in a box in the airing cuboard.  If any hatch in the next few days then you will have to hand rear, if nothing hatches within a few days then the eggs are infertile or the embryos have died.  I strongly discourage trying to put any chicks back with the hens, we tried to do this and the hen tried to attack the chick, fortunately we grabbed it back quickly.  Hatchlings need to be kept inside and kept very warm, about 98 degree F for the first week, decreasing by 5 degrees every week thereafter.  A cardboard box with a regularly refilled hot water bottle under a towell will do for a few days but PandT Poultry do a good range of brooder cages and lamps and are fast to deliver.  Beware, a lone chick is very demanding! Ours would cry when i put it in its box and would only settle at night, i ended up carrying it around for 14 hours a day.  Also a lone chick will think you are its mum.  2 or more chicks is still time consuming but at least they keep each other company and don't require constant attention.