what breed is it or is it just a mix?😁

[Nbbl]

 

[wrathsfarm]

I'm no expert .. but it looks like an over colored Silver Black Marans (Birchen) to me.
Maybe a mix...

 

[Mabz]

View attachment 3848212View attachment 3848213Maybe Jepanese bantam

 

[JedJackson]

Mixed breed. Looks much too small to be a Marans and there's too much white on him, too.