Buff Brahma sexing experiment

[Poodlemum]

#4 is the one I feel looks most yellow

 

[Poodlemum]

#5

 

[Poodlemum]

#4 and #5 side by side comparison. I needed more hands for the wings

 

[pipdzipdnreadytogo]

Oooh, bantam Buff Brahmas! They are such cuties!

I think you're right that #4 is solidly in cockerel territory for the color. I lean toward pullet color for #5. Now that I'm looking at all of them, I'm starting to wonder about my initial guess on #1, though...

Looking over all of them and comparing them to each other, this is where I'm sitting for my 'official' guesses:
1 - not sure, leaning very slightly toward pullet still
2 - pullet
3 - leaning cockerel
4 - cockerel
5 - pullet

As you can see, I am confident in my guesses.

 

[Rhodebar Lover]

Very interesting! I'm not going to be of much help but I will research a bit and get some guesses! I bet this method is very dependent on the line and if it was selected for this trait just like many autosexing breeds.

 

[Poodlemum]

So far I’m seeing two roos and everyone else is hopefully pullets

 

[Poodlemum]

Oooh, bantam Buff Brahmas! They are such cuties!

I think you're right that #4 is solidly in cockerel territory for the color. I lean toward pullet color for #5. Now that I'm looking at all of them, I'm starting to wonder about my initial guess on #1, though...

Looking over all of them and comparing them to each other, this is where I'm sitting for my 'official' guesses:
1 - not sure, leaning very slightly toward pullet still
2 - pullet
3 - leaning cockerel
4 - cockerel
5 - pullet

As you can see, I am confident in my guesses.

My marking system was a bust, but so far your guesses seem accurate