Actually now, looking at pics of Speckled Sussex chicks, he/she does look like one. If you're lucky he/she is a Speckled Sussex, they are very pretty birds
It's very cute! (Since you're asking for gender too I didn't want to say "she" like I was going to, I can't tell the sex at that young of an age, lol)
But anyway, it looks just like the offspring of our mixed breed Araucana/Americana hen which was out of a McMurray Araucana/Americana. Our...