if you heard it peeping it should be hatching in the next dayish.....
as far as what to do... hopefully you have time tomorrow to sit and watch them?? they may fight over it, they may play nice, they might try to kill it... you never know.. and it's that way even on a single broody.... you just have to be ready for whatever happens... good that you have the brooder ready, if you really want to keep the chick it's safer to take it away, if you're not NEEDING this chick and you can risk the loss, if it happens then see how it goes.... be ready to take the chick at any point, some mommas are good mommas for a few months, some are good mommas for a few days, mine was good for about 2 weeks then started to lose interest.. if i had taken them sooner i would have a lot more chicks in the yard... as it was i took them when there were only 3/10 left... lol.. but i wasn't needing any of htem... i wanted the little frizzle that i lost, but... meh life goes on... i can get another one later....
as a side note, i think one of my dogs things that baby chicks look just like tennis balls running across the yard....
as far as what to do... hopefully you have time tomorrow to sit and watch them?? they may fight over it, they may play nice, they might try to kill it... you never know.. and it's that way even on a single broody.... you just have to be ready for whatever happens... good that you have the brooder ready, if you really want to keep the chick it's safer to take it away, if you're not NEEDING this chick and you can risk the loss, if it happens then see how it goes.... be ready to take the chick at any point, some mommas are good mommas for a few months, some are good mommas for a few days, mine was good for about 2 weeks then started to lose interest.. if i had taken them sooner i would have a lot more chicks in the yard... as it was i took them when there were only 3/10 left... lol.. but i wasn't needing any of htem... i wanted the little frizzle that i lost, but... meh life goes on... i can get another one later....
as a side note, i think one of my dogs things that baby chicks look just like tennis balls running across the yard....