Help with identifying breed of 3 day old chicks

[The Happster]

That one is indeed a Dom.
Whoever previously guessed Speckled Sussex was correct as well.
Cute birds.

 

[bvallang]

6 weeks old now so figured I should post some updated pictures! I've moved them outside to their brooder under one of the roosts/poop board. It is a little small for them now, since I was a week late putting them outside due to the cold front we had. I'm trying to give them the whole coop to themselves for at least half the day to spread out. But since I'm trying to integrate with the rest of the flock, I want them to see them as well as my hen needs to be able to get to the nesting boxes to lay. Plan is to create some safe spots in the run for them as well as make a cardboard door with small holes for only the little ones to get in and out of the brooder. That way they have some escapes.

 

[bvallang]

So the breed list as of now is:
2 RIR - one pullet, one cockerel
1 NHR I think - pullet
2 Wellsummer - pullets
2 Barred rocks vs 1 barred rock 1 cuckoo maran- pullets, looking at the barring pattern one is blurred and has pale/slate legs instead of yellow
1 dominique - pullet I hope, finally got a pic of that nice rose comb
1 black australorp vs black jersey giant - pullet
1 speckled sussex - not 100% on this one, tail feathered in with the rest of the pullets, but little worried about that pinkish comb

Really hoping the SS is a pullet, as I already have a total of 4 cockerels that I will have to decide what exactly to do with the 3 extra - free range, rehome or freezer camp. Will keep the most well-behaved one in the coop/run with the ladies.

I also attached a photo of the older chickens - a mix of NHR and BOs and hybrids (1 mamma hen, 3 pullets and 3 cockerels). They are only a few weeks older, so I hope when I allow supervised integration this weekend, after this week of see, but no touch, that there won't be too much pecking and hassling. Crossing my fingers because the little brooder space is too small for them to handle for too much longer.