Can anyone help with gender?

[Mammy Mo]

Hatched 4 chicks, now around 11 weeks old...Roos or pullets? (Think maybe it's 3-1 to the Roos...) new to this. Little speckled one possibly a pullet?

 

[sourland]

The red and white bird is a pullet - the three primarily white birds (if those are indeed different birds) are all cockerels. Sorry about that. They almost look like the result of a sex linked mating. What are the parents?

 

[Mammy Mo]

Mother is a sussex star, father is this handsome guy...

 

[Mammy Mo]

The wee pullet has dad's yellow legs, as has one of the 'white' ones...the other two have mum's pale legs. Does this mean anything?