Araucana are NOT rumpless in every standard.. example is the UK.
B to the S dear misinformed chicken friend..
Silkie is a chicken and can hold their own with the best of them in rain, large fowl pecking order, lay rate, free range, etc.. I bred them for a few years.. they don't adjust easily to sudden changes and SOME aren't the sharpest tool in the shed.. But they should not be poopoo'd in the way that folks try to make us think their too fragile and should be kept under blanket lock and key..
I keep a stag pen with rooster as well.. The bantam boys know it isn't about the size of the chicken in the fight but the fight in the chicken. Shipping IS a bit harder on bantams.. but beyond that.. it's people who are delicate.