Are these roosters?

[Isabella F]

Don't know the breed but, often the red patch over wings (on birds that aren't predominantly red) is called "The red patch of doom." Because it is such a good indicator in most breeds, doom = cockerels.

I have an EE with red on its wings, so he's a rooster?

 

[debid]

I have an EE with red on its wings, so he's a rooster?

It's a combination of shade and distribution. Look at pictures of red pyle game chickens. You'll see some females with red on the wings but it looks different from the male version.

 

[Then I Will]

Don't know the breed but, often the red patch over wings (on birds that aren't predominantly red) is called "The red patch of doom." Because it is such a good indicator in most breeds, doom = cockerels.

On my Sumatra cockerel here, you can see a reddish brown feather on his crop area. Underneath the surrounding black ones there are actually three such feathers. I was worried this was a genetic blemish that would mean he had some impurity in him- and I would have to cull him, however, now, I am very hopeful it is only that red patch and will molt out after the first year.

 

[Then I Will]

Do you have any guesses on what breed it is?

I'm not very good at telling the breed of young poultry as I have only seen a wide variety of adult chickens at shows. But the first rooster you showed us, looks like a blue variety of something like a black austrolorp (I don't even know if austrolorps come in blue.) Considering that his feet and legs are black but his toes are green... he might just be a mix, and therefore be called an EE.
The black chick in your lap looks like he could turn out like the first roo you showed us. They might be the same kind.

 

[debid]

On my Sumatra cockerel here, you can see a reddish brown feather on his crop area. Underneath the surrounding black ones there are actually three such feathers. I was worried this was a genetic blemish that would mean he had some impurity in him- and I would have to cull him, however, now, I am very hopeful it is only that red patch and will molt out after the first year.

That's not a red wing patch.

Black isn't actually a feather color, it's caused by melanizing gene(s) that cover over the underlying color. Wing patches tend to show through more readily than in other areas but you can get color "bleed" elsewhere. I believe they call it "mossy" when a black bird has brown showing through and it probably won't molt away.

 

[Isabella F]

Can you tell if these two are roosters?

 

[Then I Will]

The top one is a rooster. The second also looks like it could be due to saddle feathers showing. I'll vote both are roosters.

 

[Then I Will]

That's not a red wing patch.

Black isn't actually a feather color, it's caused by melanizing gene(s) that cover over the underlying color. Wing patches tend to show through more readily than in other areas but you can get color "bleed" elsewhere. I believe they call it "mossy" when a black bird has brown showing through and it probably won't molt away.

That's helpful. I'll keep my eye on them. They are only hatchery stock after all,.... but I can't seem to locate any breeders with quality birds yet....

 

[debid]

Can you tell if these two are roosters?

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Yes! Most definitely cockerels.