Well I buy my birds from private avaries and zoo's,all of the birds I buy are legal.And they all die from natural causes or are cull's (birds that are deformed in one way or another).....
Most birds are not endangered, they are PROTECTED, by cites.
they are protected because they are in demand in one way or another.
I dont want to stirr the pot, but with all do respect natrix do you even tie? You havent used anything that is rare? Even most common birds are protected by cites, most water fowl ,pheasants,softbills and parrots.