Yes twenty is young for a grey, you have to think about how our knowledge has progressed though, so many greys who are in their 40's 50's etc...their diet was generally poor, i dont mean because of lack of care, its because of lack of knowledge..its a very interesting subject this
If you think about how our society has progressed, fox hunting banned, care of animals laws inforced, much more information is available, pellets have been introduced, laws on how we keep birds have been introduced, we have avian vets, we have specialists, we have studies to go by..this sort of thing was just not available til relatively recently...even in in the 70's and 80's things were very different, i recently read a book written in the 70's by Rosemary low, it was a laugh to say the least "use asbestos sheeting for the avairy roof", can you imagine
Anyway, i think the lack of knowledge, studies, good diet, this is why we see very few old greys...thats one of our aims on this forum, we always concentrate on diet, its a very important part of a greys well being, well, the most important you could say...I would expect to see greys living much longer and happier lives, we learn all the time, adn we need to put it into practice..then we will be seeing healthy older greys in the next generations
Well Done with your tiels...piccies please
