A few months ago, my little bro's hen had five chicks (one didn't survive) and she rejected one for being black while the others were yellow. Popuri was her name, she lasted a few weeks until my stupid sister's chihuahua was let into the house and she killed her... only three remained and they lasted more than popuri, but they escaped the cage in the shed and we found them dead... no survivors... my little brother was devastated... I was thinking to myself and asking myself, could a hen accept new chicks or will she attack them? Would it make her happy? Or depressed? If any of you tried to attempt this, please do tell me about your experience and If it's a bad idea, please explain why. Thank you.