Brooding whilst raising chicks

[Johncoop]

recently my black jersey giant went broody sitting on 20 fertlized eggs. about 4 days ago the 21 day mark came and the first chick hatched and in the span of 3 days 4 other chicks hatched. although a couple of chicks hatched there is still a good sum of eggs under her though i doupt most of em will make it i cant bring myself to do anything about it since i dont know if chicks can still hatch after 25 days of brooding. a couple of sources have told me that all baby chickens that do not hatch after 26 days are not gonna make it and chickens brooding whilst having chicks is dangerous for the chicks, i still see movement in some eggs and one that i can hear literal chirps inside of.
so what do i do? do i just wait it out? or do i have to take action?

 

[kattabelly]

Is there a chance some of the eggs were added slightly later, after she'd already started sitting? Maybe another hen added eggs, or she might even have collected them herself from another nest box. If so, they might not all be on day 25 yet. The fact you can see movement and hear peeping from inside some suggests that they might still hatch.

If some of the chicks are four days old now they definitely need to be eating and drinking. Is she taking them off the nest, even for short periods? Making sure the chicks have access to food and water (and that they know it's there!) pretty much right next to the nest, and closing off the area so they can't stray too far while she's still sitting, might be the best option to buy you a few more days if she's willing to keep sitting for that much longer. If some eggs are more than a few days behind you might need to let them finish developing in an incubator though, if you have one. There's a chance she would still accept them once they've hatched but she might not - the greater the age difference, the more likely it is that she would reject them or they'd not be able to keep up with the older chicks.

 

[redinator]

recently my black jersey giant went broody sitting on 20 fertlized eggs. about 4 days ago the 21 day mark came and the first chick hatched and in the span of 3 days 4 other chicks hatched. although a couple of chicks hatched there is still a good sum of eggs under her though i doupt most of em will make it i cant bring myself to do anything about it since i dont know if chicks can still hatch after 25 days of brooding. a couple of sources have told me that all baby chickens that do not hatch after 26 days are not gonna make it and chickens brooding whilst having chicks is dangerous for the chicks, i still see movement in some eggs and one that i can hear literal chirps inside of.
so what do i do? do i just wait it out? or do i have to take action?

I'd candle the remaining eggs to get an idea how far along they are. Here's a link to a chart I use and it's pretty detailed and accurate. https://thehomesteadingrd.com/candling-chicken-eggs-day-by-day/
and everything else @kattabelly said. Good luck