Trouble with chicks if they are male

[r32chicks]

I am having trouble determining if a couple of my chicks are male. They are showing male behavior like chest bumping and fighting. Is this reliable to determine their sex??

 

[Chicken Girl1]

No it is not, you could post pictures of them so we could try and sex them for you.

 

[pewterchick]

No not really pullets do it as well.

 

[r32chicks]

 

[r32chicks]

 

[r32chicks]

No it is not, you could post pictures of them so we could try and sex them for you.

I have pics of the 2 chicks in question below

 

[BantamLover21]

Buff Brahma, too young to sex accurately. However, I don't see any obvious cockerel traits yet.

Red Sex-link, definitely a pullet.

 

[K Spot]

x2