Sulphur crested cockatoo feather loss
My Sulphur crested cockatoo is 37yo, has had an owner before us. When with my Father inlaw he was in a reasonably large cage (not big enough to fly in). He is now in a parrot cage 2mtx1.3mt. He has benn with us for 3 years. He started losing some feathers 1 year ago but they grew back & he was OK. However this year about August he started losing them again & has continued until now. He looks terreble with two cone feathers & very few on his chest, back & wings are not any where near a bad. Has anone got any ideas?? Please.
P.S. I presented a mirrow in front of him the other day & he was not concerned at all.
Thank you RMac