Lets play another round

[Chispylandia]

I got this chicks that are supposed to be Blue Australorp and Blue Plymouth Rock, the problem is I'm having a real hard time telling them apart. If anyone can help its greatly appreciated.

 

[TheOddOneOut]

Sapphire gems. Sexlinked cross. Girls.
Minus #4. He has a head spot. Boy.

 

[Rhodebar Lover]

To tell the two apart leg color is key! This difference will get more clear with age, but Plymouth Rocks have yellow skin and Australorpshavw white/pink. Check undersides of feet to tell! Not sure why one has a headspot. Perhaps a mix

 

[happychicken2435]

Sapphire gems. Sexlinked cross. Girls.
Minus #4. He has a head spot. Boy.

X2