lameness

My budgie for the past 2 years 2 moths in the beginning of summer where his left leg becomes lame and he holds it up all the time never weight bearing.. happened the exact same time two years in a row we gave Lupron it worked so we said it way enlarge teste,, the second vet that did ct scan did...

Hello all i recently found out my budgie probaly has a tumor she has lameness in her leg and it got worse and worse to thr point its dosent move now Im worried because its turning purple and swollen she bit her nails complety off, i have pain meds for her but the ver told me that theres not much...