My chickens are sick/dieing I need help!

[MagAPie]

I've lost two chickens so far both were Rhode Island Reds. It started with extreme feathers loss in the butt area and they stopped laying eggs. Thinking it was just the change in weather we didnt worry about it. Later we lost one chicken (named Nugget) unexpectedly. After that we watched the others very closely and noticed the other red (named Chaser) had lost her appetite as well. Soon she died (both of their deaths were in two weeks). We recently go four new chickens to accompany our lonely little Banty hen. So far the Banty is only showing signs of losing feathers but I am guessing whatever this is is contagious. Can someone help me? I know its not much to go off of but I am worried about my chickens.

 

[Eggcessive]

Welcome to BYC. Pecking around the vent can lead to cannibalism. Without getting a necropsy, it would be impossible to know what killed them for sure. Coccidiosis is a common disease in younger chickens. If the new chickens are much bigger than the banty, I would watch her closely so that she is not bullied. Small or lower pecking order chickens can be kept from drinking and eating by others, somit is always a good idea to have at least 2 water and food stations so everyone gets to use them. Sorry for your loss.