hello. i bought a mix of 8 chicks. theyre all diffent breeds and all are the same age. however one lil black ive named Soot (i think its a silkie) is still roughly the same size as when i got her. she should be about 3-4 weeks and the other chicks are just towering over her and they are starting to pick on her bad. there is another white very fuzzy silkie that is growing more than Soot as well. do i need to intervene? maybe buy yound chicks that are her size and make a new flock on the side? or make her a pet? Breed?