I think I got a copple of things mixed together, here the standard is not so long legs, you could say it is between long and short legs. On the farms and most backyards the legs are a bit longer than standard.
I don't know where you got the idea that Dutch have smaller legs, they don't.
Nugget at 2.5 month's
Nugget at 10 month's.
She weighs just 485 grams.
I think you meant chabo's(japanese bantam) they do have shorter legs.