Most likely a sign of calcium deficiency and/or an infection. It's good that she pushed out the egg.
I would suggest giving her calcium for at least 5 days. Do it ASAP. If you have poultry calcium powder, a quarter of a tea spoon divided twice per day should do it (so 1/8 twice per day). You...
I know how bad it feels, but you did everything and at certain point it's better to end it than letting them suffer. It's endlessly frustrating when you can't help them. Some conditions are simply incurable.
11 years is impressive. Good on you for giving her one last good day at the end.
That works. It has a bunch of other ingredients, but people on byc have been giving them to chickens before without issues. I'd suggest half a tablet per day. You can put the half in her beak whole or crush and dissolve it into a spoonful of water.
Wet pox should have hit her faster. This sounds more like a respiratory virus. Does she have lesions inside her mouth or down her throat? White/yellow-ish masses looking like cheese or a cleaning sponge? When she eats/drinks does she have trouble swallowing? Maybe raising her head vertically in...
I go with a tiny amount on the tip of a tea spoon, once per day, when it comes to chicks. Vitamins (especially B) with a bit of selenium usually does the trick. Doing the math and measuring for such tiny amounts is a PITA. I've never poisoned a bird with they way I do it.
Could be a sign of calcium deficiency as well as infection. It's good that she pushed out the egg.
I would suggest giving her calcium for at least 5 days. If you have powder, a quarter of a tea spoon divided twice per day should do it (so 1/8 twice per day). You can dilute it in some water and...
I've seen improvement anyhwere from a couple of days up to 10 days. Depends on the initial condition of the bird I'd guess.
You can feed her some boiled yolk if she continues refusing food. Just to keep her strength up.
Could be. My neighbour told me his rooster jumped from a yard table the other day, misjudged the jump and hit a door sideways not too badly at first glance. Dropped dead on the spot. His conclusion was heart attack.
She could just be a loud one. It happens. Could it be discomfort from the lamp? Have you tried putting her in another place to see if she makes the same sound?
Hello and welcome. No way to know the reason unless a necropsy is performed by a professional or you give us details we can work with. Have you noticed any symptoms? Odd behavior?
It's a standard pill from the drug store. Crush it and take a tiny amount of the powder on the tip of a knife or a tea spoon. If you have trouble with that or overdosing fear go with the eggs option others suggested.