FINCHforum

What kind of ilness did he have? Digetion problems, breathing problems?
Could be that the antibiotics just temporarily alleviated some of the symptoms but did not "cure" the ailment.
Could be stressed by another bird in the cage.... have you notice any tension or fighting/chasing?
Sounds like the bird still has a problem, I would remove it. Sometimes they can have ilnesses that need different type meds, like airsac mites, mega bacteria sulpher meds, etc.
Sorry he is under the weather but it is important to keep him seperated from the rest of the flock. You would not want it to spread to the others.

Is he going into, out of or is stuck in a molt? Like Candace said, please tell us what the illness was that he had before. If it was something like air sack mites, then its possible there was a secondary infection from the dead mites in his "throat."

Dear All

Thanks for the reply & help.

In this past, this gouldian had some digestive problems, including diarrhoea. I have taken him out and place in a separate cage, and he seems fine without doing the fluff and head behind his back...

PTan