i have 2 gold partridge wyandottes gerty and daisy their 15months now,i get so much pleasure from my chickens i wanted to add to my flock, in may this year i bought 2 more chicks 8 weeks old, one a rir peggy and a feather booted bantam rosy within a week of buying them rosy, died leaving peggy on her own i had seperated these chicks as advised on here i fenced half the run off and made another coop to go in it, after studying i realised rosy died of cocci and must have had it when we got her, she kept peeping huddling & was fluffed up we just thought she was bigger than polly as being different breeds & we thought the peeping was cause she was missing the other chicks she'd been in with, when realising it was cocci i treated all the chickens just incase, but i was left with the dilemma of peggy being on her own, which i read was not good for her and i couldn't put her in with gerty & daisy they would have a go at her through the fence when she got too close,so i decided to get three more chicks 2 rir hetty & polly & 1 light sussex princess they seemed ok but peggy never really mixed with them like she did with rosy, seemed to keep her distance, all seemed to be going well gerty & daisy got used to seeing them through the fence and seem less interested so after 2 months they looked big enough to hold their own, i started free ranging them in the garden supervised so if daisy or gerty had a go i was their to stop them and their was enough room in the garden to get away from them,after a few days of doing this and they seemed okay we took the fence down but left the other coop so their would be no squabbling at bedtime, but found the four chicks were sneaking in the big girls coop once they were settled, but sadly 2 weeks later peggy died of cocci so treat all of them again with coxoid, all seemed fine then about a month after that hetty also died of cocci, i was at my wits end at this point i had visions of losing my entire flock, then about 2 weeks ago polly was looking fluffed up thought was gonna lose her so had to take drastic action as she wasn't drinking and coxoid was in the water, so we force fed her from a syringe to make sure she was getting it about four times a day, after two days she started to perk back up but kept them all on coxoid for another week i am hoping that is the end of it but got coxoid in the cupboard just incase, i thought once been treated they would be ok, but then read there are lots of different strains of cocci they may get immune to one strain but not another, i learnt the hard way introducing new chicks, and would really like to add to my flock as i only have four now instead of seven, i will have to be contented with what i've got couldn't face losing another one, my girls have DE in sandbath & coop ACV in their water, poultry spice in their food, and often do their legs with scaly leg spray to stop them drying out, i dont know who's more pampered LOL good luck introducing your newbie