Head shaking

[Meweber]

Hello, I have a 9 month old americauna who over the past few days has been constantly shaking her head. She did have a dirty vent with some poo stuck to the feathers around her vent, which I trimmed off. She’s also appearing to be losing some feathers from the top of her head. She usually lays an egg every 1-2 days, but hasn’t for 3( I know it’s winter and very cold here in missouri). No nasal discharge, coughing, sneezing, neck outstretching, yawning. She’s eating normally. Not drinking as much as usual. Today her comb looks slightly pale. She’s active and pecking around per usual. I have 5 other same age hens a couple shake their heads occasionally otherwise very normal.
I treated all the Diatomaceous Earth, deep cleaned out coop. No improvement in her appearance. No visible worms in her poop, she has normal poop.
Considering bringing her inside where it’s warm and trialing Denagard? Any suggestions?
Any advice appreciated,
Thanks

 

[azygous]

Have you inspected her ears? Looked into her throat? Nares clear? Parted the feathers on her head to look for lice?

Is she scratching at her head? This, more than head shaking, would point to an issue.

 

[Meweber]

Have you inspected her ears? Looked into her throat? Nares clear? Parted the feathers on her head to look for lice?

Is she scratching at her head? This, more than head shaking, would point to an issue.

She’s scratching occasionally at her head, but definitely not a lot. I didn’t see any visible mites. Her skin on her head does look slightly more irritated, but not bad. Honesty, I couldn’t see her ears! I’ll try to look in her throat tomorrow. Thx

 

[Meweber]

Have you inspected her ears? Looked into her throat? Nares clear? Parted the feathers on her head to look for lice?

Is she scratching at her head? This, more than head shaking, would point to an issue.

Nares are clear. Throat is clear. She’s pretty tough to allow me to inspect her head much, but she is definitely scratching more now and so is most of my little flock. I ordered elector psp, because of the scratching and otherwise normal behavior and appearance, I’m assuming it’s lice or mites. We have had mice for the first time ever in the coop I’ve noticed maybe they brought some bugs in.