Remember when General McAfferty (sp) was the drug czar under Clinton? He embargoed tons of bird seed from Canada because it contained sterilized marijuana seed, just has it had for decades.
Some guys can't past the word hemp.
I have a 37-year old Amazon parrot that would sell her soul for hemp seed.
Back when it was available in a seed mix, she would start sorting through the seed I put in her bowl, eating all the hemp seed first.
Her favorite food of all time is still raw beef (go figure) and she can detect the scent of beef brought home from the store and still sealed in packages in the fridge...and starts asking for it in plain English.