I just rescued two neglected canaries seems like one has feather cyst which idk what to do with it's on its wing but dint rlly think need vet attention they both have scaly legs and one ruffled up feathers and one has missing nails on all its foot will it grow back poor baby, or gone forever how can I treat the scaly legs their vaseline for now and what to do with the cyst thanks they've been living without ANYTHING basically their whole life no bath no veggies fruit no toys nothing just seed and water and on tip of that never let out and were in a cage fit for ONE canary please someone help I wanan give them their best life these remaining years