Ok... I'd really appreciate an answer to this, ANY answer, please!! I'll try to give you all information I possibly can:
- The Silkie was bought on a market, in the beginning of this month, along with 14 other chicks. Some are laying breeds, some are meat birds, but all approximately the same age - maybe a few weeks apart, at the most. The lady told me they were around 2 months old. The Silkie, as far as I can guess, was the oldest of the flock to this point, because she was the only bird with an adult voice. She acted dominantly, with energy and curiosity about the environment, spending many hours hunting for insects and always at the top of the pecking order.
- Some chicks showed signs of a "cold", as soon as they arrived: sneezing, running noses, some developed noisy breathing and looked sleepy all the time. So, I went to the pharmacy and bought antibiotics for them, have been putting the recommended dose into their water for about one week. Meanwhile, some improved but three of them died, including the one I mentioned in this thread
https://www.backyardchickens.com/t/1116529/diseased-chick-is-swollen-and-transparent-help
- The Silkie, however, didn't look sick at any point, until the trauma (4 days ago). She is drinking the medicated water, though, as they all are, just in case.
- A couple of days after I bought the chicks, a family friend gave me another 3 birds, namely, a rooster with around 4 months plus two hens, slightly younger.
- The rooster, being the biggest in the coop, soon became the dominant male but was never too aggressive. I never saw him chasing any chick or using excessive force for any reason. He's also very respectful of me, never pecked one finger.
- The trauma, as said before, was a mating attempt. I didn't see it the first time, but heard the screams and saw the plucked feathers all over the coop. The poor hen was terrified and also very dirty on her back. No visible injuries, though. Meanwhile, during the moments I spent trying to create a second enclosure out of nothing, he tried to mate with the Silkie again, twice.
- Since the first attack, Silkie is depressed, almost lethargic. She eats and drinks but everything else is gone. Yesterday I let her out of the enclosure and free-range in the veggie garden, just to see if it would cheer her up. She pecked at a couple of flies but soon went back to being still. I brought another chick out to join her, that seemed to work but only for a while...
- Besides being introverted, she is showing one more symptom: when she goes into her stillness, she shakes her head in a strange way, as if she had a nervous tic. It is not a steady shaking, rather a more erratic one. When she resumes normal activities like eating, drinking, looking at flies, etc. the shaking stops.
I need to know if there is anything I can do to help her. I've been combing the entire internet for clues. For the time being, I've managed to divide the enclosure, keeping the rooster on one side with his favorite pullets and the Silkie on the other with her best friends. I have placed an opaque curtain between the two clans, so they won't stress about each other. She is still very depressed, even though I've done everything I could think of...