Sick Hen? Mites? Pictures Attached

[StinkyAcres]

I haven't supplemented lately but do have oyster shells that I can put out now. I do crumble up egg shells from time to time and throw them in with the veggie scraps, but am probably not being consistent enough with it.

They should have access to a calcium supplement free choice. Keep it in a separate container and they will eat what they need.

 

[Wyorp Rock]

I purchased as a pullet a few months ago. She was one of four and was healthy until a few weeks ago. She picked up a serious limp a few weeks ago when we had heavy winds, but with careful watch has been favoring her bad leg less and less. She seemed to be fine finally, with only a minimal limp and a few missing feathers, which I attributed to being picked on by other hens. Now I notice she is noticeably smaller than her flock mates and has yellowish growths on her neck and beak, as well as more feather loss and a crusty appearance on her head.

Video attached of the weird neck bobbing that just started this afternoon.

I also just came back in from checking on them again, and another hen is doing a weird neck bobbing thing. Definitely will be treating the whole flock and entire coop and run area for mites as soon as our wind dies down.

I feed them organic layer crumbles by Scratch and Peck.

How old is the pullet? Is she the only one this age?

Can you get more photos of her when possible - all of her so we can see the coloring of her skin/legs/face, etc.?

I agree, if you had a crawling bug on you, it would be a good idea to treat all with a Permethrin based poultry dust. Use a Permethrin based poultry spray to treat housing. Repeat in 5-7 day intervals.

I don't see any yellow growths on the neck. I do see an off white earlobe, which can be normal depending on breed/genetics.
I also do see what looks like evidence of mite/lice activity.

Yellowish lump on the beak. Could be a bump from injury sticking the beak in a feeder, through wire or perhaps a Papilloma, hard to know. This area can be a common place for beak injuries. Monitor it - see if it slowly disappears, gets worse/stays the same. (Also watch to see if she's rubbing the beak on anything like the inside of feeder or sticking her beak through wiring to reach grass/weeds, etc.)

Other hen in video is adjusting her crop. This can be a normal behavior after eating, but I'd check her crop for a few days to ensure it's emptying overnight. It may not be...she has a plucked and/or balding area over her crop, this could be from another hen plucking at her, but sometimes when a hen has a crop problem especially sour crop, they tend to pick or scratch the crop area.
If you find the crop is not emptying, address that symptom according to this article:
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/