I'm looking to add two new chickens to my flock. I currently have two Golden laced Wyandotte a little over a year old and one Isa brown about 7 months. I was thinking about adding a Buff orphington and possibly a speckeled susuex, Americauna, Araucauna or Welsummer. What would be a docile, gentle, medium-small size chicken breed that comes sexed and layes bigger eggs? Any suggestions would help! Thanks!