Fluffed up, sad, head-shaking chicken!

[Archie010]

Hi all,
I've just got a new flock of 4 hens. All seem to be doing very well except one. She follows the others wherever they go and eats and drinks with the others completely normally, though sometimes she does not eat as much, but she spends most of her day fluffed up, tail down and shaking her head, which she does almost every 5 seconds. She also scratches her head lots with her foot.
She is 16 weeks old, and, otherwise seems incredibly healthy, bright, loose wattle, shiny eyes, decent weight, no missing feathers, she has been wormed, mite-powdered, and sometimes joins in with the others. When I put the powder on she perked up quite a bit. She does not linger in coop when I let them out.
Completely baffled. Help much appreciated

 

[chickenlittle21]

Did she start laying yet?

 

[Assuncao CostaPinto]

Hi all,
I've just got a new flock of 4 hens. All seem to be doing very well except one. She follows the others wherever they go and eats and drinks with the others completely normally, though sometimes she does not eat as much, but she spends most of her day fluffed up, tail down and shaking her head, which she does almost every 5 seconds. She also scratches her head lots with her foot.
She is 16 weeks old, and, otherwise seems incredibly healthy, bright, loose wattle, shiny eyes, decent weight, no missing feathers, she has been wormed, mite-powdered, and sometimes joins in with the others. When I put the powder on she perked up quite a bit. She does not linger in coop when I let them out.
Completely baffled. Help much appreciated

Sometimes animals who had severe respiratory diseases rest with those kind of sequels...

 

[Archie010]

Did she start laying yet?

Hey thanks for the reply, no, none of the others have started yet

 

[Archie010]

Sometimes animals who had severe respiratory diseases rest with those kind of sequels...

Surely she’d be sicker? She runs about with others without getting distressed fine

 

[Assuncao CostaPinto]

they act normal but keep those tics (shaking head;opening more often the beck;stretching the neck...)

 

[Archie010]

they act normal but keep those tics (shaking head;opening more often the beck;stretching the neck...)

I haven’t seen an opening beak and she tucks her head right into her neck. She also scratches her head a lot, the others do it too