Me and my husband have two orange roans, my mum and dad have two blue roans (who I bought with my parents and lived with them until they were three yrs old, then left home).
I have to say Morgan (BR) was soo like Henry (OR) at Henrys age now - 16mths. A right little sod

Whilst Katie (OR) and Dylan (BR) are similar too. I'm not saying Katie and Dylan don't have their moments, but when I compare how Dylie was at Katie's age (27mths) they are very much alike

Henry is always on the look out for mischief

, Morgan was exactly the same at that age

. Dylan was what we call 'crafty'

and didn't like getting caught out - Katie is exactly the same

.
So IMHO, I think the colouring doesn't have much to do with it, more the genetics.
Either way, you gotta love 'em
