Originally Posted by
PlaxMacaws
To begin with, I'm not a veterinarian. However, your bird may be suffering from septic arthritis (aka, bacterial arthritis). It's difficult to know whether either of the two antibiotics you've listed, Clindahexal and Enrofloxacin, are effective against the pathogen that's responsible for the condition of your bird's foot and leg. Might your bird himself have plucked the missing feathers?
One of my macaws developed septic arthritis in his foot and leg last year and I was able to successfully treat the condition with medication. The vet prescribed Amoxicillin 240mg/Clavulanate 60mg, which I administered orally @ 0.5 ml twice daily for 60 days. His condition slowly improved and ultimately resolved.
The thickening around your bird's joints appears quite severe to me. My advice would thus be threefold: 1) Follow the recommendations from Jean-Pierre and Helena regarding your vet. 2) Realize how vastly important it is to utilize an antibiotic to which the particular infectious agent will be sensitive. 3) Administer said antibiotic for a long enough period of time to completely eradicate the infection. Looking at your photo, my guess is that three days is not nearly enough time on an antibiotic to accomplish that goal.
Also, Helena may well be correct; your bird may be suffering from gout.
Please keep us updated on your bird's progress.