Educated aviculturalists know that most adult psitticines are not predominantly seed eaters in the wild.
Quakers are no exception.
They have wide access to a variety of fruits, vegetables and grains. Wild Quakers, much like their domesticated counterparts, are extremely adaptable and will eat just about anything if given the chance. Left to their own devices, it is known that vegetables are the basis of their diet. They also choose to consume a fair amount of fruits and grains with the occasional insect thrown in during the breeding season. In most species, including humans, instinct plays a role to help adjust an animal's intake according to their individual nutritional needs at any given time.