Help! SFH 8 weeks from hatch date

[FlowerBouquet]

I have 6 SFH pullets that we purchased from a private individual March 3, 2020 and told that all chicks were wing sext...all pullets.
Now, my pullets are at 8 weeks and I noticed 2 of the pullets are “trying to crow”and sounds like “AahhhaaaRrrrrr!” But the tail feathers and back feathers have predominant Round edges...EXCEPT I have (1) Pullet with a completely different feather look.
I need help on these little guys. I am attaching pictures of my bouquet for everyone’s help in telling the difference from a Roo and Hen.

 

[Perris]

the brown one in the first photo and the three with red combs in the last are all cockerels. (BTW I don't think it's possible to feather sex SFH.) You can tell by the development and the colour of their combs and wattles.

 

[Perris]

BTW, hello @FlowerBouquet ! welcome to BYC

 

[FlowerBouquet]

Thank you for welcoming me to this group.
I want to make certain that the picture of all pullets together, only 2 are hens. I’ve marked the Roo’s in a blue“R” and the hens in a pink “X”. 4- Roos and 2- Hens
I’ll have to find homes for the Roos because we are only allowed hens in per our city ordinance.
Thank you for your time.
-Sheri

 

[BigBlueHen53]

Hi, I am here to learn (and I have SO MUCH to learn, lol) so could you post a pic of the two solid brown birds so we can see their heads more clearly please? I know the more experienced people here can probably sex them by what they can see, but ... like I said, I'm still trying to learn. Thanks!

 

[BigBlueHen53]

Oh, oops, I see the head of the one in back now. Sorry, blush... am in the car.

 

[FlowerBouquet]

Hi, I am here to learn (and I have SO MUCH to learn, lol) so could you post a pic of the two solid brown birds so we can see their heads more clearly please? I know the more experienced people here can probably sex them by what they can see, but ... like I said, I'm still trying to learn. Thanks!

 

[FlowerBouquet]

Oh, oops, I see the head of the one in back now. Sorry, blush... am in the car.

That’s okay. I posted each one individually... the last 2 pics I think are hens. I’m hope I’m correct.

 

[BigBlueHen53]

Thank you. Oh my eyes, this really is a lovely breed, isn't it! But I think I can see the differences in the combs also. The two hens' combs are much smaller and paler in comparison. Thanks again.

 

[BigBlueHen53]

Also, the males have very developed wattles.