Chickens are losing feathers around neck

[Chicklays45]

Why is this happening

 

[SurferchickinSB]

View attachment 2925697Y chickens they are losingfeathers around there necks

Molting?

 

[Myrshine]

Any pictures? Pictures may be able to help. There can be many causes for feather loss, from diet, bullying, molting, over-mating by the rooster, parasites, stress or illness.