What sex and breed are my chicks

[Maddistee]

Hi, I was wondering what breed and sex these two are ?
We think they may be barnevelders!

 

[Silviaschicks]

I agree, one looks like a barnevelder. The one in the 3rd pic is a roo, other is still too young to tell but probably pullet

 

[TheOddOneOut]

They look like Orpington mixes, maybe.
The larger one is likely male.
DEFINITELY not both Barnevelders.
Those have yellow legs.
Only one has the yellow legs it needs.
The other could be a SS

 

[Painted Calls]

Where did the chicks come from?