So I am searching for a feathered family member, had greys in the past...always was told not to feed a seed diet...I fed pellets for greys, and always a fresh mix of grains fruits and veggies...okay so I found an 8 year old grey someone is trying to rehome...they have owned him for the entire 8 years, vet checked regularly and appears to be a happy healthy guy...but when I asked what his diet was the guy tells me his grey won't eat pellets that he is on a seed diet for about 60-70% of his daily intake, the rest is fresh/raw fruits veggies and what not...says its the bag of seed mix that they sell at petco, says its around $30 and has sunflower seeds and other stuff mixed too...so I come up with it is more than likely the Kaytee fiesta blend for parrot...the bag with the grey on the front...So, how big of a deal is this for the overall health of the bird, and it's my opinion that I would try to change his diet if I do end up purchasing him, I plan to feed a chop basically...I just don't want his 8 years of this stuff to be something the will have ill effects now or later in life...any information you have I would love to hear...thanks for reading!