Alright, after some more research and debate with family members about to origin of the breeds I didn't know, you are correct about the Quaker!
Apparently Quakers were his grandmothers favorite type of bird and there was another one around that died at the age of 24 a few years after she did.
That Does present a problem for me since he has absolutely refused to allow the birds to go anywhere but within the family. I, in all honesty, may resort to deception, and tell him that I am keeping them, while finding them proper homes, be that with other family members, or with a sanctuary near by. My thoughts being... well, he is in his late 70's and I live over six hours away. Let him happily think someone is keeping them in the family. I visit him, not the other way around. It'll be best for the birds to find new homes and best for him to lessen the incredible burden of caring for them and cleaning after them.
I believe the green one with the red front to be a Mitred Conure? It's my best guess and looks the closest that I can find.
http://conurecommunity.com/mitred.htm
Other than the Quaker, and the Mitred Conure that he still has, he also has two Cockatiels, a Ring Neck Conure, and one other that is his personal companion, hand reared and never been in a cage. I am clueless as to the breed of that one and it doesn't hang around long enough for a picture. I did tell my boyfriend to try and get one while he is there though.





