Help with Breeds!!

[nursemomab]

I hatched these chickies out but have no idea what they are. I bought polish eggs and the seller just added these guys in to fill up my second dozen of eggs. Please help me out if you can!! And I would love to hear thoughts on gender too!! Thanks!!!

 

[Percheron chick]

Need better shots but 4 and 6 are roos.

 

[junebuggena]

1 and 4 have pea combs, so maybe Easter Egger mixes. 5 and 7 are Polish mixes. 1, 4, 6, and 7 look like cockerels to me.