Chicken pests

[Ibchduckin]

I have noticed that my chickens are shaking their heads a lot and have a white sort of powdery look on their combs . Does anyone have any ideas?

 

[Shadrach]

I have noticed that my chickens are shaking their heads a lot and have a white sort of powdery look on their combs . Does anyone have any ideas?

Good clear pictures would help.

 

[Crazyboutpoppy]

Are they eggs from mites?sorry not really an awnser