Interesting chicken

I noticed this chicken today; he's a cross between a red leghorn and a barred rock.  I know the father of this chicken; it's the only one I have that has this sort of coloration, but what's interesting is that his thighs and legs are barred rock. 

You can see the barred rock a little more clearly here.  Here's the father: 

Couple of key differences.  Notice the color of the ears on this bird:  the ear color is the egg color that a hen of this breed will lay.  So this is a white egg-laying chicken breed.  His son has red ears -- brown egg laying breed.    The father weighs about 4lbs liveweight -- and the son weighs about 6lbs, so in addition to the brown egg laying trait the son has gained some size. 

The father is looking a little ragged.  This is year 2 for him, so he's due for a molt.