5 week old mixed breeds- hens or roosters? Help!

[amandaryan]

I have 5 week old mixed breed chickens that I hatched in my kindergarten classroom. I am a first time chicken owner and I am looking for some insight on possible breeds and genders. I will post 2 pictures of each of the chickens below. Thanks in advance for your help!

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[Egghead_Jr]

Of the one image that showed up I see a red comb. Doesn't mean it's red as my computer screen, photo, lighting can all be deceiving.

If all your birds are single comb then here is how you tell from now to 10 weeks of age. If you see any red in comb it's a male. Period. Single comb female birds will not start to show red in comb until point of lay which at it's earliest would be around 16 weeks of age. Any red in comb prior to that is a male.

I said from now to 10 weeks as 99% of your males will show red by 11 weeks of age.