Chickens losing feathers

[chickenfriend5]

I found a big pile of one of my Female Easter Egger's feathers outside. They don't free range all the time, but they usually go out almost all day, almost everyday. We heard squaking a while before, but didn't go out to check. The Easter egger that lost teh feathers is about 5-6 months old. Any help would be appreciated! Thanks!
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[itspebbl]

It's around the time of year chickens molt, so your girl may have just shook or something and the feathers came off

 

[chickenfriend5]

From what I've read I think she's to young for molting. Could it be one of the other chickens attacked her? I have another Easter egger, 2 Black plymoths, and one white leghorn, all hens.