1st photo: Maybe Cornish bantams.
2nd: Blue Cochin roo, perhaps? He looks like he’s got a bit of frostbite, too.
3rd: Sapphire gem or sapphire olive egger
4th: Black Australorp or Jersey Giant
5th: Easter egger
6th: Black Australorp or Jersey Giant
7th: Black sex-link
8th: Likely another olive...